Um... A coupla ideas here. First off, I think small weapons should fit in a large port. I know some people disagree, but it is definitely a plus from my point of view. Secondly, I think the "rear" weapon mount should shoot backwards.

Definitely agreed on the "firing backwards" thing.

WTF?? it doesn't shoot backwards???? WTFing good is that? i wanna launch a nuke at people as i trade!!!!!