[quote=Zero Hex]Well, I get the cave is better navigated by human-sized beings but what's stopping Shockwave's troops from bombing/shelling the crap out of it and collapsing it over their heads[/quote]That would require the Cons to know the location to begin with, which at this point they don't.

[quote=Zero Hex]especially considering NAILs won't give a crap long as they're left alone?[/quote]I think the NAILs would care considering it's under a city, not one of the most populated like say Iacon.

[quote=Zero Hex]Also this does remind me, some normal cybertronians like Bumblebee, Brawn or Cliffjumper are actually kinda small compared to other members of their species, so what about them? Could they navigate the caves with only some mild discomfort? Granted, Transformer scale isn't exactly stable even across a single given work, but some guys were always just smaller than the rest.[/quote]I'm going to say they would be able to stand up straight, but the paint job on the top of their head will get messed up.