Please, dont force us into Game Chat to promote "team bonding". On MW2, you have no choice, except for those rare game types. When I sold MW2 and started playing WaW again, it was nice to play Search while i was talking to my friends in my party that still thought MW2 was the best game ever. I just love not being forced to go into game chat, especially by a company that cant hold their own team together. (Well i guess that was activision's fault...)
Any game that disable's chat during gameplay (S&D / Sabotage Overtime) should not permit Party Chat. All others it should be open for.
I think the countless threads on this subject have determined that the majority of the community agree with this position and I would be highly surprised to see Treyarch do anything different then this.