The three man firefight team doesn't bother me right now due to my experience in Reach. I found matching with randoms that three was a sweet spot due to lag being reduced and their was plenty of targets in a target rich environment even in Arcade with rocket whores jet packing all over the place. Plus everyone could pile into the Warthog without the odd man out. Now this comfort with a three man unit could drastically change in large part due to how Destiny plays and a lot of unseen factors are finally revealed. All I can say is I hope there are some really big team oriented vehicles in the line up.