Warzone How do you know what station you'll end up at after completing the metro Easter egg?

[Supahfly]

Hey guys! Do any of you know how to find out what station you'll end up at after completing the metro Easter egg? Most of the time I end up back at the airport but on quite a few occasions I've ended up back at downtown or the other station next to the big camper building. I've ended up eating the gas on a few occasions and it's pretty frustrating. Any advice on the issue would be helpful.
Thanks!!