Dude, believe me. I have a full team of six ready to play the Crucible, and during the Beta, we won just about every match together by communicating the WHOLE time we were together. Sometimes, we would even decide to explore the Cosmodrome, so we decided to split up into two groups of three searching to find new loot. We would even tell each other what type of loot we got and the stats of that loot, and even though we split up into two groups, we still kept in the same party! Believe me, some (not all) of the PSN community communicates a lot. If this doesn't convince you, I don''t know what will.