A gamebreaker for me in this otherwise good game is the lack of fireteam chat when matched with strangers. This applies to both PvP and PvE. I feel that PvP could be much less random if we could communicate (games with randoms usually results in 6 people running around the map clockwise and trading territories) and PvE would be way smoother (you tell people that you are low on ammo, to skip mobs, call out enemies, to aggro so we can get an angle on the tank's legs, to not revive and potentially wipe us, to snipe X etc etc etc...the list is long) And I'm refering to an optional setting here in combination with a quick mute feature, similar to the one in the Halo games. Hence, people who arent interested in chatting with strangers would not be affected in any way. Vote!