Infinite ammo does work.
I got it -_-
But, you have to re-make it for every weapon.
It's like fireteam, the scouts drop replica's of YOUR grenades.. just make replica's of YOUR bullets

Edit: It's not freezing ammo if you use CE, way different than that >.>

2nd Edit:

Quote Originally Posted by DECAP1TATED View Post
maybe it's sorta patched uh pl0x.
if you have 30 ammo and you won't reload, you bullet's damage will be 0.
Infinite ammo = You will always reload >.> DUHH