you work for the CIA, you were the best in training in your class(?) so they chose you to work for them, and no doubt you were good at this

one day as your in the shooting range, the deputy director comes in with two men, one being Stan Hurley, a former Navy SEAL and a Cold War veteran and some random guy whom is probably that Mitch Rapp dude that you heard they recently had recruited out of the blue after 30 days of debriefing, supposedly he was really good and had trained himself in martial arts and marksmanship just to get revenge on these terrorists that killed his fiancée eighteen months ago

once you put down your gun and take off the ear muffs and look over, you hear the deputy director call everyone over, so you take off the safety glasses and put them down and walk over to join the rest, the deputy starts to explain on how Stan Hurley is here with a black op’s mission and how he needs a few men to come with him for special training

and of course, you and a few others get picked and then get led away to a helicopter, after a bit of a ride you make it to this building surrounded by woods, once you guys hop off the helicopter you all go inside and Stan Hurley starts to explain the mission and how he would train you all for it