The current latest versions for Modern Warfare 3 are the following:
Multiplayer - 1.9.388110
Single Player - 1.9.388110
When downloading hacks, please make sure they are for the above versions. Otherwise, they will not work or maybe even cause a ban. Please contact a staff member to mark the hack as patched to prevent things from happening.
Update notes:
~ Last updated 2018Code:- Patched Remote Execution Exploit (RCE)