The Club is basically Mercenaries mode from RE4 and RE5 turned into a full game. Some people seem to hate it, others seem to enjoy it. I'm with those that enjoy it. It doesn't have a normal campaign or anything and it's all about building combos by getting headshots, killing someone with your last bullet in the clip, time trial stuff, survival, etc. I would compare it to PGR, but you have that listed too.