I'd tried that bunker ladder animation too. I'm just going to have to bite the bullet and figure out how to edit animations. Even if I can't make new ones, there's a whole lot I could do if I could just rotate them to a different direction or changes offsets. There's also a lot, like the ladder animation, that have really useful segments, if I can figure out how to crop out the stuff I don't need.
It occurred to me this morning that I can probably set up a variable to control when the guys hit the bottom of the ladder, so I can keep them from stacking up so bad.