[CB..]

best way to test out the system compartment damage stuff is to dive stick the scope up let an enemy warship spot you and then leave the scope up...just for testing purposes...eventualy a shell will hit the subs but as you are submerged the damage is reduced....you get a damage message (and an explosive noise) in the task bar ..check out the damage screen and all the usual suspects are there and subject to individual damage and repair times as with other sims..so it's there...just don't see it in action very often...be nice perhaps to mod the damage system slightly (tho i haven't seen any obviuos way to do this )..to reduce the instant death down to major system damage etc...that way you get better milage gameplay wise and plenty to think about whilst repairing the damage and evading the attacking vessel at the same time...