F1 - Inf.Health
F2 - Inf.Ammo
F3 - No Reload
F4 - Inf.Grenades
I used my own old Trainer Engine for this game which i'm planning to develop and use more in 2018.
You should play without internet connection just in-case because the single player seems to have anti-cheats.
Don't delete any of the DLL files next to the trainer, Unless you have c++ redistributable 2015 64X installed then feel free to remove the DLL next to the trainer.