Personally I'd rather see ACtA move to a more BFG-like critical and damage system. Ships in BFG have far, far fewer hits than in ACtA, and you can relibaly destroy a ship without getting any criticals in a couple of turns of firing, if you concentrate two or three ships of the same class on it. Two-three cruisers can kill a cruiser in one or two turns of firing, for instance. Critical hits add some spice but don't happen that often and you don't rely on them to kill anything.