Here's a minor thing I just thought of that no one else seems to have mentioned. Will Invasion mode have different maps to play on like ODST's firefight? Or will it just be like an arcade challenge to kill as many things as possible before inevitably dying on one map all the time. It would be nice to see different maps, though I don't want to push HVS budget beyond what its capable of. Any ideas or news on that front?
The off screen trailer shows invasion mode on that map, also I saw a screen with 2p splitscreen gameplay with a player attacking a soldier below, the other player was looking at the gunfight, I guess that too is invasion.