Credit For Damage?

[l02turner]

I know this would be hard to do but has anyone thought about giving the subs some kind of credit for scoring several hits on, say, a battleship but not enough for sinking it? I hesitated asking this, because I cannot think of a way to do it, but ya'll are smarter than I am. Or maybe it's not worth the effort? Actually, maybe giving 1/2 credit when a ship is hit but not sunk? What's the concensus?