What ever happened to the ability to team up with random people on Invasion mode? It also wouldn't be mandatory to party up if you want to play invasion with your friends. You'd just need to have one friend open a game room and then have the others join.
Now, if Nintendo won't even allow that, I don't know how the hell HVS is going to manage to put out The Grinder. That whole game is built around that concept.
Uncharted 2 Machinima Voice Actor. Currently playing Sully and Lazarevic. Add me on PSN if you want to get involved: Geo_Chronic.