You mentioned that, if you use the trainer, the game crashes when using a gun.
So does the game crash just because of the trainer or using any option whatsoever or only when you use a certain option or only when you use a certain weapon in the game?
without any option on just activated trainer, tested all classes same result
@koner: Trainer is working fine on my end. Also I don't see any other reports according to your issue. Please verify steam game cache, try by starting a new game. Maybe it's an issue with your savegame / game files.
@diehard: Are the sentry guns unlocked by default? Otherwise please provide a savegame and use the option request.
I did reinstalled game re-downloaded trainer started new game but problem is still there
Can I take a look on it via teamviewer?
sure will pm you with details