If you cheat in MGSV, you can use the training rifle used by child soldiers. For some reasons it has a description, first person model view and can shoot (+ has the
Metal Gear Solid 5: The Phantom Pain Trainer +18 v1.15 {CheatHappens.com} - Download - GTrainers
Metal Gear Solid V: The Phantom Pain | Debug strings? - FearLess Cheat Engine
STEAM] Metal Gear Solid 5 Phantom Pain - table v: 6.0.5 CT{TheyCallMeTim13} - Open Cheat Tables