Fun games to hack in?

I want to hack in a new game, what do you guys think the top FTP games are to hack in? It can be a shooter, RPG, anything. And preferably a game that has a section here with good hacks, like Combat Arms for example (great aimbots in that section of the forums). All opinions welcome, thanks!

crossfire.

What he said.^

Combat Arms
10/16 hackers each room.