Offset akimbo bullets slightly left and right.
Update third person aim calculation to disregard glass and shoot as if directly through it. The hud indicator will still show a mark when hitting the glass, and I update it to show where akimbo shots will go as well. Also allow the camera to back up through glass panes, but not grates.
Don't do dive forgiveness into a slide, the player probably wants to get up in that situation.