fourDeltaOne is a community focusing on various projects, currently most prominently IW4M. IW4M is a modification for Call of Duty: Modern Warfare 2 adding various oft-requested features such as dedicated servers, modification support, an in-game console, field of view changing as well as new maps and other features to the game. It is also free of charge. (of course, you need a copy of MW2)
Me and Brickybob play this a lot, so if you want to hit us up on Steam:
(forum name to steam name to mw2 name)
Coolio - TehCactus - TehCactus
BrickyBob - MyNameIsMrTriscuit - zZGzHD
