Maybe they'll put in some kind of special ability where you can bust out two guns and kind of just spray everywhere.
Maybe if you're an enforcer you take out your rocket launcher and your grenade launcher and just start shooting in every direction.
Or if you're an avenger sprinting through a crowd of enemies you can spray SMG fire everywhere and just hope for the best.
It would be pretty fun to do, and fun to watch
and not too overpowered so why not?
I haven't seen anything like that in any of the beta videos but who knows?
Some crazy acrobatics might not be a bad idea either. Maybe if you have light enough armor you can jump off walls or something. Maybe everyone can do a little roll. Rolls are always fun to do :D