even when the player attacks them
I'm designing a pair of simultaneous missions. One has a ship that doesn't move, with the player's goal being to protect it. Easy enough. The other has ships that ONLY attack the ship from the first mission, with the player's goal being to destroy them. I want the ships from the second mission to continue trying to destroy the ship from the first mission even when the player is killing them. Sort of a "race" to kill them before they kill it.
I can't get the ships from the second mission to ignore the player attacking them. Assistance please?