While I am kind of on the fence with this, it seems kind of silly... if you are playing WITH Friends, how do you complete the storyline? I mean, you are ALL the same characters, on your own paths..
Talk about busting through the 4th Wall.
Not to mention the lag it would have on the system, to deal with the LAN transmission between individuals... not really a favorable option, not unless it's limited to people of T3 lines.. which is only people at college, as nobody else can afford the costs.