David Tyssen

David is a Chiropractor, clinic director, and former college professor. He is also an accomplished SCCA/MCSCC road racing competitor and instructor, and has won multiple MCSCC autocross and racing championships. He has competed in and won in combat handgun, pistol marksmanship competition, IDPA ,USPSA, Steel, Tactical Shotgun and Outlaw 3-gun competitions. David is an affiliate firearms instructor with Defense Training International (DTI) and has trained with many renowned personal defense instructors nationwide.

Firearm And Tactical Schools Attended

Defense Training International (DTI)      

John & Vicki Farnam
  • Basic handgun
  • Urban Rifle/shotgun
  • Advanced Handgun
  • Force-on-force/scenario-based training
  • Instructor program


Strike Tactical

Henk Iverson
  • Tactical Pistol Levels 1-3
  • Defensive blade
  • Rifle
  • Force-on-force/scenario-based training
  • AK Rifle
  • Concealed Carry

 Yavapai Firearms Academy

Louis Awerbuck
  • Tactical Shotgun

 Tom Givens/Rangemanster

  • Advanced Pistol
  • Tactical Shotgun

The Massad Ayoob Group

  • Mag-20: Armed Citizens’ Rules of Engagement

Metropolitan Police Self-Defense Institute

  • Patrol rifle
  • Expert rating – Winchester/NRA marksmanship Qualification Program; perfect score

Sand Burr Gun Ranch

  • Snub-Nose Revolver

National Rifle Association (NRA)

  • Hunters’ Safety Course

Firearm Instuctor Certifications

Defense Training International (DTI)

  • Staff Instructor

Rangemaster (RFTS)

  • Instructor Development Course

National Rifle Association (NRA)

  • Certified Pistol Instructor
  • Personal Protection Inside the Home
  • Personal Protection Outside the Home


  • Safety Officer

State of Illinois

  • Certified Concealed Carry License Instructor


SSSC (South Surburban Sportsman Club)

  • Current record holder in Combat Pistol; 118/120 possible