Rockstar have noticed that cheaters using hacked saves, modded games, or other exploits in order to gain an advantage in Max Payne 3 multiplayer matches. Obviously this ruins the experience for the vast majority of fair players and Rockstar have therefore moved to take measures against cheaters.
You can report players who are using some kind of cheat to [email protected] - and Rockstar will then move cheaters in to a "Cheaters Pool" where they can only play with other cheaters.
Rockstar will take no action against unpopular but legal tactics (such as camping), but if you notice "invincibility hacks, infinite adrenaline, score cheating or doing anything else suspicious" you should drop a mail to the adress above.
For more information on how to help improve Max Payne 3 online, check out the Rockstar blog.
