Either force the carrier immortal while people are set to spawn on it, or prevent players from spawning if the carrier is dead, the latter makes more sense.
#Players can spawn on a sunken carrier
winter arrow
chilly scarab
This is more like what the mission creators need to do, not a bug.
It is up to the creator to set the carrier to invincible, or use a trigger event to disable or change the spawns when the carrier is destroyed.
winter arrow
the creator of the mission i played did not consider this, and i spawned unerwater with both engines failed. i am forced to eject in this situation. why am i even allowed to spawn underwater in the first place.