Trainer options
F1 - God Mode
F2 - Infinite Ammo / Infinite Gadget
F3 - Unlock All Weapons
F4 - No Reload
F5 - Vehicle Health
F6 - Better Accuracy
F7 - No Recoil
F8 - Super Speed
F9 - Bullet Time

Notice:

for Win7 (x64) users go to the Origin client and right click on BF4 in library, select the 32bit exe and disable Origin in-game and launch through the client itself and NOT the shortcut.