another suggestion is to leave the option 3 off until you run out of ammo, then turn it on, swap to your knife, swap to the weapon you need ammo for, note your ammo has increased, then turn the option off.
please note that i have had the game freeze without the trainer as well.
Good release guyz! Keep it up
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem