The Civil War comic sucks, who cares about doing it justice? They should just be concerned with doing it better.
It's called Captain America: Civil War because it's written predominantly as Cap's story. Other Avengers being in it doesn't make it an Avengers story, they just fill out the supporting cast, much like SHIELD fills out the supporting cast in Winter Soldier.
Which is not a great way to go. A premise like CW SHOULD NOT be primarily one heroes story. Especially if said hero is leading one side. Gee, I wonder who's side Marvel is going to come down on. The only way to make it work is if both Cap and Tony get EQUAL focus, in order to develop BOTH of their positions. Otherwise, it's pointless to even use Iron Man, any actual Cap antagonist could fill the same function.