Full disclosure, maybe I laid a trap fully intending to blow them to pieces when they spawn 'cos 300xp is 300xp.
OK, maybe its unrealistic to haul all the volatile and explosive rocket fuel into the cockpit while dragons are raining fire down on you, but the game says "I'll allow that", so...
Mostly it's just satisfying to cast a firebolt and blow up half the ship and obliterate all the cambions, but, I've found, placing the nautiloid tanks in certain patterns (in the door way) to one-shot the cambions causes then not to spawn at all.
I assume the cause is occupied spawning points - the two Cambions can't appear because their load spot is taken by a nautiloid tank.
...
EDIT:
On a reply, they eventually spawn by jumping through the window by the transponder.
Last edited by Ackadia; 03/08/21 11:50 AM.