Instructors
JT Grover
Owner
Lead Firearm Instructor
JT started Rev-Tac in 2010 as a part-time passion for preparing both the public and his peers for surviving critical incidents. His 20+ year service to this country has provided real-world experience that translates into success on life's battlefields. He doesn't spend his time in front of you shoving "war stories" down your throat though! One of the largest factors to becoming a Rev-Tac Instructor is that you are humble enough to recognize that your personal experiences aren't for everyone. That's why he has hand-picked some of the best instructors out there that are more than qualified but love teaching your grandma as much as much as they love teaching "cool guys".
As a successful career sniper, JT is currently leading multiple sniper teams for a Airborne Infantry Unit. He has been his sniper team's medic for many years as well as a paid city firefighter/medic for 11 years. JT has multiple deployments in support of the global war on terror, instructing foreign forces, as well as supporting continental US missions from floods to riots. He dabbled in law-enforcement for a few years before realizing that wasn't the direction he wanted to go but remains passionate about preparing this country's law enforcement for success under extreme pressure. His dedication to his craft lead him to instruct at one of the US Army's premiere sniper schools for a few years before taking Rev-Tac full-time in 2015. JT loves teaching long-range precision, carbine classes and defensive pistol. He wants people to know that gunfighting isn't the only tool you should have in your tactical toolbox though! Check out all the other classes that we have also!
Tonya Grover
Firearm Instructor
Leading Women’s Firearm Program
Tonya's credentials are under wraps- but Tonya has extensive experience! She has studied firearms, verbal judo, and has been training in firearms for many years! Tonya is a USCCA and NRA certified instructor but is our expert in our De-Escalation Courses and Personal Defense Courses for women.
Mike Donahoo
Firearm Instructor
Leading Defensive Tactics Courses
Mike came to our range with 20+ years experience as a lead martial arts instructor. He has worked law enforcement and is our expert in defensive tactics! Mike is our range operations manager and is a USCCA and NRA certified instructor. His favorite courses to teach are carbine, shotgun and defensive pistol!
Jacob Haefs
Range Operations Manager
Firearms Instructor
Jacob spent 8 years serving this country with the army. He’s served overseas, coming home with a passion for helping combat vets who have lost their purpose after the uniform. He dedicates countless hours to our non-profit, Contact-Front.Org when he is not on the range! He’s a USCCA qualified instructor, as well as our primary youth defensive tactics coach! Jacob’s personality and big heart make every day awesome out here! If you’ve been around him, you know what we’re talking about!
Marc Cruz
Firearm Instructor
Tactical Medicine Instructor
Marc joined the Marine Corps in 2008 and worked up to an assistant team leader during one of his deployments. In 2013, Marc attended college and worked as a firearms instructor. By 2018, Marc left the Marine Corps Reserves and joined the Nebraska National Guard to the 195th FSC to become a medic. Transferred to 2-134th A Co and was placed as a team leader. After returning from NTC in 2021, he took the Sniper indoc and was moved into the Sniper Section as a team leader. Years later, he now runs sniper teams as the sniper section leader.
Marc has been a lead instructor at Rev-Tac since 2022 and is a EMT/Paramedic in Omaha, Nebraska. Marc is passionate about tactical medicine and long-range precision. He cares about the people he instructs, and his knowledge is clear during his classes!
JP Velez
Firearm Instructor
JP has worked with Rev-Tac for 7 years teaching advanced rifle and pistol tactics, vehicle-based operations, defensive tactics and small-team tactics. His qualifications are 28 years of service in the US Navy with 26 of those as a dedicated Navy SEAL. JP worked for Panthera Worldwide as both a firearms and tactics instructor for Tier 1 support units as well as training foreign special operation units. After that, he did anti-piracy security contracting before coming to us! He’d be the last to tell you about his service and that’s why we love this humble instructor so much! He’s also a NRA certified instructor and loves teaching our civilian classes as much as our agency classes! Come learn a thing or two from this guy!
Jack Carda
RTTI Operator
Lead BJJ Instructor
Jack Carda has spent over 20 years on the mat, and it shows. A jiu jitsu black belt and decorated competitor, Jack won the American Grappling Federation's No Gi National Championships in the 175+ pound pro division and earned bronze medals in both his weight class and the open weight division at the IBJJF Masters World Championships. Before that, he served as Team Captain of the NCAA Division I Air Force Academy Wrestling Team, a role that set the tone for everything that followed.
But Jack's most lasting impact has come from coaching. It started in high school, coaching youth wrestlers. After graduating from the Academy, he developed high school wrestlers into state placers, state champions, and collegiate athletes. During a deployment to the Middle East, he ran the base's jiu jitsu program for six months. For Jack, the mat has never been just a place to compete. It's where he watches other people find out what they're capable of.
Jack served for over ten years on active duty in the Air Force and continues to serve in the Air National Guard. Off the mat, he is a full-time real estate professional living in Vermillion, SD, with his wife and three kids.
Connor Duffy
RTTI BJJ Instructor
Connor has an impressive MMA record in the UK as well as representing the British Army in the highest levels of their combatives tournaments. His black belt in Krav Maga really lends itself to the personal defense aspect focused on in his seminars! Keep it simple and effective!
Brian Wilkerson
Firearm Instructor
Defensive Tactics Instructor
Brian joined the United States Marines in 2000. During his Time in the Marines Brian had several deployments including the initial push into Iraq. Brian was hand selected to be an instructor at the Infantry Officer Course, Special Operations Training Group (SOTG) as well as teach Marine Corps Martial Arts. Brian left the Marines after close to ten years of service to join the law enforcement community. He served the public for 15 years, 10 of that being SWAT. He was the tactical commander for their sniper team and defensive tactics instructor.
Brian is easy going and humble…always ready to pass on knowledge!
JD
Firearm Instructor
12 years and counting with the Navy, ten of those as a Navy Seal.
JD is passionate about taking your shooting and tactics to the next level. His instruction style is both fun and easy going, but he demands excellence from his students.