How do I do that with the latest version of the trainer? There's no Armor option in the editor. And is there a way to fix the reloading bug? When I reload a gun, the game always fills the magazine up fully, but if there's fewer rounds in reserve than there are rounds needed to fill the magazine, then the counter dips into the negative, and i have to collect more ammo until it climbs back to the positive before I can reload again.
You cannot do it because our latest trainer (DX11, April 16, 2017) has a trainer option for Armor (Numpad 4).
And it seems that your save game is corrupted as I didn't encounter any of the issues described in my latest testing of the trainer. Wether reload nor ammunition bugged on me.
Did you try a new game?