If Marvel Ultimate Alliance 2 is focusing on civil war, that means players need to fight other heroes right? Hence, "choose the side" kinda stuff.
 
But does that mean the players don't get to choose the heroes that they want?
 
I am really looking forward to play this game(I even pre ordered it) but let's say my dream set of heroes is Iron Man, Captain America, Spider Man and Storm. 
 
 Since Captain America and Iron Man are against each other(as it's shown in the trailer), does that mean I cannot put them in the same team?
 
If so, doesn't kinda defeat the whole "you get to make your own team of heroes!" motto?

I'm not 100% sure since the game isn't out yet, but I think one of the trailers (launch trailer?) said something like "We were focused on fighting each other, when the real enemy appeared".... so I'm guessing that 1/2 way through, the heroes put aside their differences and you can play as all of them.  That would also seem to fit with why villains like Venom and Juggernaut are playable.    It would be nice if there was a newgame+ option to play as everyone regardless of how the story takes you.  But of course I'm just speculating at this point :|  
 
In any event, you can play through again with the other side, because the game's gonna be awesome, right? ....Right?