My only complaint is that if Roll wears combat armor like this, she loses pretty much everything that makes her look feminine, being modeled as a young girl and all. I'd be able to get behind it a lot more if there was a break in the back for her hair to flow out of. Using her hair tie as a scarf, however, is a nice touch.
I also think that Roll would use some form of melee over a gun any day, but that's another argument for another day!
I also think that Roll would use some form of melee over a gun any day, but that's another argument for another day!