re: #349 Apocalypse

Quick question: Is that to qualify the difference between small-caliber “fast” Assault and larger-caliber “slow” Battle rifle?

Carbine and assault rifle are largely interchangeable; the difference is a carbine has a shorter barrel for close-in combat or weight, at the expense of accuracy. (Strictly, an assault rifle has selective fire and detachable magazines - the term was invented by Hitler interestingly enough.) A carbine can be an assault rifle but can be a single-fire rifle (even something like a bolt-action rifle).

AR-15’s have detachable magazines but are not selective fire. (They can be modified for that though, which makes the term somewhat grey - however, since they meet all the other features, it’s really a distinction without a difference.)