Download Link
W3 +5 Singleplayer Trainer
Heres my +5 Cheat Engine trainer, since it uses pattern scans, it should work with all versions of MW3 Not sure who to give credits to for the scripts though Compatible for both 32-Bit and 64-Bit operating systems.
Features:
God Mode (Ctrl+1)
Unlimited Ammo (Ctrl+2)
Unlimited Equipment (Ctrl+3)
No Recoil (Ctrl+4)
Rapid Fire (Ctrl+5)