I found a map escape involving any delayed teleports not in theta (theta_nether, theta_end or zero). To replicate this escape before the tp enacts go to /spawn. This will cause the tp to tp in the current world (theta) rather than the intended world. For a concrete example: in the car ride to school in BF2 if the player starts the dialouge that leads to the tp to school then goes to spawn they will be tp'd to the location in theta rather than zero. I'm assuming this bug is present in other maps, but this is the one I have proof for.