does this stack. opponent had 2 of these on a ship face up and thought they stacked, i thought they did NOT stack that would be very crappy , even though it would help me. so he would have taken 1 facedown for a ram, then 2 more face down because he had 2 Damage Controls face up on the ship??
Damaged Controls x2 - Crew - When you overlap a ship or obstacle, deal a face down damage card to your ship (in addition to all other obstacle effects)