Well you can talk to anyone but from what I've read you still need to add them first either on the Rival's list or Friend's list. --- There is no better way to defeat your enemies but to slice and dice em right Link?...oopz forgot you can't speak. Well I guess a simple head nod is sufficed.
Yea, you can add them to your "Ally" list and start chatting with them. It's basically a second Friend List where you can add people In-Game and without FC's. --- MWR Screen Name - Pur1fy | The Conduit Screen Name - Pure | MOH:H2 - Pur1fy http://www.youtube.com/user/SupahShnipa - COMMENTARIES