Oh man, Mechwarrior. Nothing like taking a Daishi, loading it up with 3 LBX20 autocannons (well, the LBX were more like shotguns) and an LBX10 and going into the arena. Wow those things could take out anything short of a 60 ton heavy mech in a single alpha strike. Even full assault mechs usually can't take that much damage without falling over, letting you drop in a second alpha strike virtually unopposed.
Damn I feel like playing again now. So much fun with a Sidewinder Force Feedback 2 joystick.
As for the mod, wow that looks great. Seriously, the trailer they have imitates the Mechwarrior 4 Vengeance trailer very well. Looks fantastic.
Note: for release date, the trailer said Winter 2008, though I'm not sure they can make that, none of the screenshots have any texture yet.