That's why BF4 is no good for depictions of realistic warfare. Check any version of Arma. 12.7 HMG kicks major ass. However, this show kind of tries to mix together (advertising) realistic JSDF and a fantasy world. So, they ought to try to be a bit more realistic about guns'n'stuff, even if it's difficult to balance them with magic and monsters.
Gothic lolita is a clothing, make-up, hair, and accessory style for women. Not restricted to young girls, either. It doesn't refer to loli (as a manga/anime genre) as such, although I imagine lots of the participants wouldn't mind looking like a genuine loli. You see these people in any bigger city in the West, so it's not restricted to Japan anymore. Nothing sexual about it, or at least not any more than in any random style for women.