I tried putting a health vial behind the portal and that works great. So I'm guessing a teleport device is not an object of importance to bots. The bots would open the turbolift doors and see a teleport and say "oh, it's just a stupid teleport, no thanks". That seems kinda odd to me. AI is kind of funny. X)) If it's programmed to pick the best way to achieve a goal, it would probably pick the teleport if it would help them reach their goal.