Meet the Cadre

Meet the cadre and staff from the Department of Military Science and Leadership at Central Michigan University.

Closeup image of LTC Ryan Greening wearing a military uniform with a U.S. flag and CMU flag in the background.LTC Ryan J. Greening

Professor of Military Science, Lieutenant Colonel
Phone: 989-774-7682
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Lieutenant Colonel Ryan Greening is originally from Bowie, Maryland. His military career started as a 11B Infantrymen with the Maryland Army National Guard and attended BCT/AIT in Ft. Moore (Benning), Georgia in 1999. In 2001 Ryan was award a four-year ROTC scholarship to Towson University in Towson, MD.  He graduated in December 2003 with a Bachelor of Arts Degree in Sociology and was commissioned as a 2nd Lieutenant in the Field Artillery. Ryan completed Officer Basic Course in Ft. Sill, OK in September 2004. 

LTC Greening’s Company grade and platoon Leader time included a tour in Korea with 210 Fires BDE in C-BTRY 6-37 MLRS. Then a tour in Iraq in support of OIF as Platoon Leader and Training Officer with 4th BDE 1st Calvary Division. Following completion of Field Artillery Captains Career Course in October 2008, he then would complete a second tour in Iraq with the 1st Cavalry Division Headquarters. Upon returning in 2010, Ryan would take command of C-BTRY 1-21 Field Artillery of the 41st Fires Brigade in Ft. Cavazos (Hood), TX, and completed a first tour to Afghanistan in support of OEF in 2011. After returning from OIF, he was selected to resident Command and General Staff Officer Course in Ft. Leavenworth, KS, and graduated in December 2014.

As a Field Grade Officer, he first served with the NATO Special Operations Component Command in Afghanistan is support of OEF in 2015. Ryan was then assigned to JBLM in Washington state serving as a Battalion Executive officer then Brigade Executive Officer with the First Army’s 189th Combined Arms Training Brigade. Ryan has also served with the Mission Command Training Program in Ft. Leavenworth, KS, and his most recent assignment was at First Army Headquarters in Rock Island, IL, as the Current Operations Chief. 

LTC Greening’s military and civilian education includes Bradley Fighting vehicle course, Company Commanders course, Joint Fire Power Course, Combatives, Collateral Damage and Precision Fires Course and Certified Faculty Development Instructor course (CF-DIC). Ryan also received a Master’s in Sociology with Florida METRO Univ.  

LTC Greening’s decorations include the Bronze Star Medal (2 Oak Leaf Clusters), Defense Meritorious Service Medal), Meritorious Service Medal (3 Oak Leaf Cluster), Army Commendation Medal (3 Oak Leaf Clusters), Army Achievement Medal (2 Oak Leaf Clusters), Iraq Campaign Medal (3 Stars), Afghanistan Campaign Medal (2 Stars), Korea Service Medal, and NATO Service Medal.

Ryan is married to his wife Christine and has two daughters Karis and Keira.

Major Nicholas AndrychowskiMajor Nicholas Andrychowski

Assistant Professor of Military Science
Phone: 989-774-3149
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Major Nick Andrychowski was born in Enfield Connecticut. He enlisted in March 2005; graduating BCT from Ft. Sill OK and was assigned to 71st CSB in Bamberg Germany. During this assignment, he deployed in support of Operation Iraqi Freedom (OIF 05-07). Upon return to Germany in 2007, Nick was selected for the Army’s Green to Gold program (ADO). He joined the Minuteman Battalion and graduated from the Westfield State University (UMass ROTC) in 2009 with a Bachelor of Arts Degree in Psychology and was commissioned as a 2nd Lieutenant in the Field Artillery.Upon completion of Field Artillery Officer Basic Course in 2010. 

Major Andrychowski served as Platoon Leader and Executive Officer for Bravo Battery and as Battalion S4, 3-16th Field Artillery, 2 BCT, 4th Infantry Division at Fort Carson Colorado. During this assignment Major Andrychowski deployed in support of Operation Enduring Freedom (OEF 11-12) as light infantry Platoon Leader before moving to Battery Executive Officer.

Following completion of Filed Artillery Captains Career Course in May 2013; he then served as Operations Officer, G33, US Army Central (USARCENT) within the Combined Operations Integration Center at Camp Arifjan Kuwait. From 2014-2016, Nick was nominative selection to command Madison Recruiting Company, Milwaukee Recruiting Battalion, 3rd Brigade. From 2016-2019, he served as senior Battery Observer, Coach/Trainer (OC/T) for 3-314 FA, 174th Infantry Brigade, 1st Army at Joint Base McGuire-Dix-Lakehurst NJ. Major Andrychowski was nominatively selected for a second command of HHC 174th Infantry Brigade from May 2019 to July 2020. From 2020-2021, Major Andrychowski served as Senior Artillery Advisor for the Saudi Arabia Ministry of the National Guard under the Office of the Program Manager - Saudi Arabia National Guard (OPM-SANG)

Major Andrychowski’s military and civilian education includes the Warrior Leaders course, Field Artillery Officer Basic course, Captain Career course, Paladin & Bradley Commanders course, Unit Movement Officer Course, Company Commander Course, Certified Faculty Development Instructor course (CF-DIC), Combat Lifesavers Course, Observer and Controller Academy and Joint Air/Ground Integration Course (JAGIC). Nick is currently enrolled in Command and General Staff College (DDE) and was selected to attend University of Louisville Master Educator Course (MEC). 

Major Andrychowski has completed four combat deployments and his awards and decorations include the Bronze Star Medal, Meritorious Service Medal (2 Oak Leave Cluster), Army Commendation Medal (2 Oak Leave Clusters), Army Achievement Medal (3 Oak Leave Clusters), Iraq Campaign Medal, Afghanistan Campaign Medal, the Valorous Unit Award, Combat Action Badge and Recruiting Badge.

Nick is married to his wife Maisha.

Closeup image of MAJ Christopher Mace wearing his military uniform with the American and Central Michigan University flags behind him.Major Christopher Mace

Military Science Instructor
Phone: 989-774-3149
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Major Christopher Mace is a U.S. Army Military Intelligence Officer with over 17 years of distinguished service. He began his military career as an enlisted Infantryman before commissioning as an officer in the Military Intelligence branch. Since then, he has gained extensive experience working with a wide range of Army units, including Infantry, Armor, Aviation, and Field Artillery, as well as within multiple Military Intelligence organizations. His assignments have taken him from combat deployments to leading strategic-level analysis and planning efforts for global operations.

Major Mace is currently stationed at Central Michigan University, serving as a Military Science Instructor. In this role, he trains and mentors future Army officers through the university's ROTC program, drawing on his extensive operational background to prepare cadets for leadership roles in today’s Army.

Prior to this assignment, Major Mace served at U.S. Indo-Pacific Command (INDOPACOM) in Hawaii, where he held multiple leadership roles within the Joint Intelligence Operations Center. Most recently, he served as the Deputy Director for Military Capabilities – China, leading long-term analysis of conventional Chinese military forces, which supports senior defense leaders in shaping U.S. strategic posture in the Indo-Pacific region. Over the course of four years at INDOPACOM, he also served on the JIOC Red Team, worked as the Senior Watch Officer, and led China contingency Intelligence planning efforts. His work supported daily intelligence reporting, major operational plans, wargames, and high-level international partner engagements.

Major Mace’s previous assignments include operational deployments and leadership roles across multiple continents. He began his officer career with the 82nd Airborne Division, serving in Iraq and Afghanistan, where he led intelligence operations during combat deployments and became the lead analyst for indirect fire threats in Ghazni Province. His work during this time was published in military professional journals, including Fires Bulletin and Military Intelligence Vanguard.

He later served in Germany with the 66th Military Intelligence Brigade, first as the counterintelligence and human intelligence operations officer for all of Europe, then as the brigade’s lead planner and exercise coordinator, where he worked with U.S. and international partners at the strategic level. He then commanded the U.S. Army Africa (USARAF) Analysis and Control Element (ACE), playing a key role in establishing the USARAF Intelligence Brigade (207th MI), while simultaneously providing theater-level intelligence support for real-world operations across the African continent.

Before arriving at Central Michigan University, Major Mace also served as ROTC Cadre at the University of Connecticut and was later assigned to the 1st Infantry Division as both the Division Intelligence Planner and the Brigade Intelligence Officer for the Combat Aviation Brigade.

Major Mace holds a Bachelor’s degree in Performance Theater from Oklahoma City University (2007) and a Master’s degree in Criminal Investigation from the University of New Haven (2018). His career reflects a rare combination of creative thinking, tactical expertise, and strategic insight, making him a valuable educator and mentor for the next generation of Army leaders.

SFC Neill Sherer Closeup image of SFC Neill Sherer wearing his military uniform with the American and Central Michigan University flags behind him.

Military Science Instructor/Operations
Phone: 989-774-7442
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SFC Neill Sherer was born and grew up in Kansas City, Missouri. He graduated from Wentworth Military Academy and worked as a vehicle mechanic before joining the Army as an Infantryman in 2008.

SFC Neill Sherer attended Basic Training and Advanced Individual Training at Fort Moore, GA. He then volunteered to participate in Airborne school after AIT to become a Paratrooper. He has previously served as a Rifleman, Team Leader, Bradley Gunner, Squad Leader, Drill Sergeant, Platoon Sergeant, Instructor, and First Sergeant. His previous units include DSTB 82nd ABN, C 2-34 AR, D 1-19 FA, HHC 434th FA BDE, A 1-6 IN, and HHC 2nd BDE.  He has deployed to Afghanistan two times in support of Operation Enduring Freedom, once to Kuwait, a Rotation to Korea, and once to Bulgaria.

SFC Sherer’s military education includes Basic Training, Advanced Individual Training, Airborne School, Basic Leader Course, Advanced Leader Course, Drill Sergeant Academy, Sexual Harassment Assault Response and Prevention course, Senior Leader Course, and the Company Commander/First Sergeant Pre-Command Course. 

His awards and decorations include the, Meritorious Service Medal, Army Commendation Medal (8OLC), Army Achievement Medal (6OLC), Meritorious Unit Award, Army Good Conduct Medal (5), National Defense Service Medal, Afghanistan Campaign Medal (3CS), Global War on Terrorism Service Medal, NCO Professional Development Ribbon (3), Army Service Ribbon, Overseas Service Ribbon (4), NATO Medal (2), Korean Defense Service Medal, Humanitarian Service Medal, Combat Infantryman Badge, and Expert Infantryman badge. 

SFC Sherer is married to his wife Jaime Sherer, and has one son together Emerson Sherer, and two dogs.

Closeup image of SGT Trevor Underhill wearing his military uniform with the American and Central Michigan University flags behind him.

SGT Trevor Underhill

Michigan Army National Guard Recruiter
Office Phone: 989-289-9495
Mobile Phone: 231-408-7078
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Sergeant Trevor Underhill serves as a Michigan Army National Guard Recruiter and member of the Central Michigan University Army ROTC Cadre. A Michigan native, SGT Underhill was born in Big Rapids and graduated from Morley Stanwood High School, where he was a multi-sport athlete, competing in football, basketball, and baseball.

He enlisted in the Michigan Army National Guard in 2020 as a 13B (Cannon Crewmember), completing Basic Training at Fort Jackson and Advanced Individual Training at Fort Sill. He was assigned to Bravo Battery, 1-119th Field Artillery in Alma, Michigan. In 2023, he began Active-Duty Operational Support (ADOS) recruiting orders, then transitioned to the Active Guard Reserve (AGR) program in May 2025 as a full-time recruiter for the Michigan Army National Guard.

SGT Underhill earned his bachelor’s degree in Elementary Education from Alma College in 2023. While at Alma, he played football from 2019 to 2023, helping lead the Scots to two MIAA Championships and serving as a team captain. He now serves as the Assistant Defensive Line Coach at Alma College, a role he’s held since 2024.

Growing up on a family farm, SGT Underhill was deeply involved in 4-H throughout his youth, which helped instill a strong work ethic and a passion for leadership and service. He is also an avid golfer, enjoys lifting and working out, and takes great pride in being an uncle to one niece and one nephew. Outside of work and coaching, he spends time with his 2-year-old golden retriever, Memphis.

Arnaldo Huertas

Contract ROTC Instructor
LTC (Retired), LG
Phone: 989-774-3161
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Last Military Occupation:

Served from Sep 2015 to Aug 2016 as CENTCOM Deployment and Distribution Operations Center (CDDOC) Future Operations Deputy Team Chief with three months as the Liaison Officer (LNO) for Combined Joint Forces Land Component Command- Iraq (CJFLCC-I). LNO responsible to the CDDOC Rear Admiral (RADM) in Kuwait and assigned Directorate within the Defense Logistics Agency (DLA) Land & Maritime. Monitored, prioritized, coordinated, planned logistical support focusing on Air Assets usage within theater. Wrote/briefed reports to one and cc'd ten General Officers three times a week. 

Civilian Education:

  • Graduate Certificate in Logistics Management (Land and Maritime), American Military University, Fort Campbell, KY in 2017
  • MAS (Human Factors) Embry Riddle Aeronautical University, Fort Bragg, NC in 2013
  • BA (Psychology) University of Puerto Rico, Rio Piedras, PR in 199

Previous Duty Assignments:

  • Project Officer, DLA Land and Maritime, Columbus, OH, Aug 14-Apr 18
  • G-4 Maintenance Officer, USACAPOC , Fort Bragg, NC Apr 13-Aug 14
  • Deputy Team Chief G-4 Administration And Resource Division, USARC Fort Bragg, May 12-Mar 13
  • Operations Officer, 210th RSG, 1st MSC, July 08-Apr 12
  • Plans Officer, G-5, 13th ESC/103 ESC, JBB Iraq, Dec 09-Aug 10
  • Standard Assurance Div. Chief/Personnel Sec. Manager, 95th Div (IT), G2/3/5/7, Jul 04-Jun 08
  • XO, 5/3 QRF ETT ANA, Kabul Afghanistan, Feb 05-Feb 06
  • Operations Officer/ S-4/HQ Co. CDR, Reserve Support, Fort Irwin, CA, Sep 01- Jun 04
  • Co CDR and XO, 973rd QM (Laundry & Shower Svc), 393rd BN, 1st MSC, PR Mar 97-Aug 01
  • Platoon Leader/XO, 266th OD (Ammo),394th BN, 1st MSC, PR Sep 95-Feb 97

Military Education: 

  • Lean Six Sigma Green Belt (1X ASI) 2013
  • Army Force Management Course (3R ASI) 2012
  • Anti-Terrorism Officer (2011)
  • Intermediate Level Education (ILE) 2009
  • Combined Arms and Services Staff School (CAS3) 2003
  • Officer Advanced Course 2002
  • Ordnance Officer Basic Course 1992

His interests include going to the gym, reading, and spending time with his wife and three daughters.

Closeup image of Bryan P. Boykin wearing dark coat in front of American flag and Central Michigan University flag.Bryan P. Boykin

Supply Technician
989-774-3180
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Mr. Bryan P. Boykin is originally from Phoenix, AZ where he joined the Army on 25 August 2000. He completed One Station Unit Training at Fort Moore, GA Maneuver Center for Excellence, graduating as an Infantryman. SFC Boykin has honorably and faithfully served 21 years in the United States Army.  

Mr. Boykin served in most Infantry positions to include Anti-Armor Specialist, Team Leader, Bradley Fighting Vehicle Gunner, Squad Leader, Section Leader, Platoon Sergeant for an Infantry Rifle Platoon, Platoon Sergeant for an Anti-tank Guided Missile Platoon (ATGM). He also held positions as Battalion Operations Sergeant, Senior Drill Sergeant, Senior Observer Controller/Trainer, Military Science Instructor at both CMU and Ferris State University, Recruiting Operations Officer for FSU Army ROTC and is currently serving as the Supply Technician at Central Michigan University ROTC.   

Mr. Boykin’s assignments include Fort Riley, KS (1-41 Infantry, 1-16 Infantry), Camp Casey, Korea (2-9 Infantry), Fort Irwin, CA (1-11 Cavalry Regiment), Fort Bliss, TX (4-6 Infantry), Fort Moore, GA (2-58 Infantry), Rose Barracks, Germany (4-2 Cavalry Regiment). He served two deployments in support of Operation Enduring Freedom and One Deployment in support of Operation Iraqi Freedom.

Mr. Boykin’s military education includes the following NCOES schools: Warrior Leaders Course, Advanced Leaders Course, and Senior Leaders Course. Mr. Boykin is also a graduate of Bradley Leaders Course, USAP Retention Noncommissioned Officers Course, Drill Sergeant School, Modern Army Combative Course. 

Mr. Boykin’s awards and decorations include the Combat Infantryman’s Badge, the Expert Infantryman’s Badge, Meritorious Service Medal (2nd Award), Army Commendation Medal (7th Award), Army Achievement Medal (5th Award), Meritorious Unit Citation, Army Good conduct Medal (6th Award), National Defense Service Medal, Iraq Campaign Medal (3 Campaign Stars), Global War on Terrorism Expeditionary Medal, Global War on Terrorism Service Medal, Korean Defense Service Medal, NCO Professional Development Ribbon (3rd Award), Army Service Ribbon, Overseas Service Ribbon (4th Award), the Drill Sergeant Identification Badge.

Antoinette Torres TuckerAntoinette Torres Tucker

ROTC Human Resources Assistant 
Phone: 989-774-3157
Email Antoinette Torres Tucker

Antoinette Torres Tucker joined the Military Science staff as Executive Secretary in June of 2021. She has been with CMU over 15 years - having worked in other university departments/colleges.  She is thrilled to be advancing her career within the ROTC program as their new Human Resource Assistant – through the Army - effective August 2023.  She has worked both in academia and corporate business and brings with her more than 20 years of administrative experience. Mrs. Tucker holds a master's degree in Music from the University of Illinois, and a bachelor's degree in Music from The Florida State University. She has been married more than 33 years to her college sweetheart and has two pretty awesome daughters; both of whom are CMU Alumna – Fire Up Chips!

Closeup image of Lorie Olson wearing a black suit jacket and patterned shirt.Lorie Olson

Executive Secretary
Phone: 989-774-3049
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Stepping into the role of Executive Secretary for the ROTC Military Science & Leadership at CMU, Lorie Olson brings more than two decades of dedicated office experience and holds an associate degree in applied science.  As a proud Navy veteran Ms. Olson’s journey has been shaped by the values of service, discipline, and teamwork instilled during her military service.

“I am honored to be an integral part of the ROTC Military Science & Leadership program.  This role is not just a job for me; it’s a commitment to nurturing the next generation of leaders.  I look forward to collaborating with the ROTC cadre, faculty, and students to create an environment that not only meets but exceeds the high standards set by the military heritage at CMU.”

“If your actions inspire others to dream more, learn more, do more and become more, you are a leader.” – John Quincy Adams

Randy Wright stands in front of a United States flag and Central Michigan University flagRandy Wright

Recruiting Operations Officer
Phone: 989-774-7440
Email Randy Wright or wrigh2r@cmich.edu

The Chippewa Battalion welcomed Mr. Randy Wright in June 2022 as the Recruiting Operations Officer. Mr. Wright has been, and continues to be a Military Science Instructor at Ferris State University. He brings with him 29 years of active duty service, with leadership positions ranging from Team Leader to Brigade Command Sergeant Major. Mr. Wright has a vast knowledge on the Army and our ROTC program, and will bring on the next generation of leaders.