I'm not a mechwarrior per se, but I get into it every now and then. Didn't care too much for mechcommander, but it wasn't quite awful. Mechwarrior 3 was fun, but rapidly because a game of shooting kneecaps. 2 was OK, but Mechwarrior 2 Mercenaries was a blast and a half. Dunno if MW4 mercs is any good - heard they messed around with loadouts and limited flexibility a whole lot in MW4, and that kind of turned me away. Balanced energy/missile/ballistic loadouts never worked very well imho - not enough firepower from the ballistic weapons for a real knockout punch, not enough space or weight for adequate heat control for the energy weapons, and missiles have been a bad joke in every MW game I've played.