Corrected entry: The Queen gets defeated by dragging her underwater with a water tower. We saw in Alien: Resurrection that Aliens can breathe underwater. All the Queen needs to do is cut the chain (if she can burrow through kilometres of snow in minutes, she certainly can cut the chains) and she can go and do as she pleases.
MasterOfAll
4th May 2017
Correction: We saw them swim. Nothing indicates that they can breathe, indefinitely, under water. It's also not necessarily the lack of breathing that will stop the queen, but the extreme cold. Also, as seen earlier, she can't cut them. Her subordinates bit her causing her acid blood to dissolve her shackles.
MasterOfAll