Cheating

Cheating is prevalent across all multiplayer modes for the PC version of MW3.

Players can expect little effort for the creators to fix this problem

Players can expect that reporting cheaters through the "steam" interface will do absolutely nothing

Examples of cheating that will often appear in MW3 include:

Aimbotting - A cheater can shoot another player without the hassle of manually aiming on the screen. Just point and click

Invulnerability - A player is resistant to all weapons

Wallhack - A player can move through walls and shoot thru them

Superspeed - Self explanatory

These kinds of cheats have existed on the multiplayer version of MW3 for many months.