Remove the ability for humans to pull T3 xenos and the Queen/Empress. I don't see how the marines can pull something that's 20ft tall.

Benefits (How this will benefit the server and game as a whole):
Stops Marines somehow dragging the massive mass of alien away, such as at ladders or just anywhere in general. I don't see how it's possible.
Details (Description of how you think this would work, the benefits, etc):
Just add a flavour text, when marines try to pull the xeno with something along the lines of "You're unable to pull such a large creature" or something like that.
Implementation (Optional, if you have an idea how to implement it):
Code it in the same way as xenos being unable to pull objects etc.