I've laughed my ass off hysterically playing multiplayer but for some reason the 'totem pole' in The Pit's green hallway had me crying with laughter. Four spartans stacked up with 2 snipers, rockets and two spikers. When a poor bastard would come wandering down the hall we'd say "BREAK!" and disassemble like an explosion of Mexican jumping beans. Grenades and gunfire everywhere - sheer terror in the visor of the enemy (I could see it) - then silence - hysterical laughter - then reassembly.

I also think CE's campaign sticks out because each and every single time I'd play co-op legendary something strange/cool/completely different would happen. Every time.

Good times, great post!