The thing on the weapons, and this bugs me too, is that theirs is a specially designed one (as per the game)... It's a base model with interchangeable parts, so you can slap the sniper attachment on and it's a marksman's rifle, or you can slap the mortar attachment on to lob explosives, or you can go with the basic assault configuration...
All 4 are trained at each other's jobs then, but the specialists in their specific "field" are integral to the team's overall success and stuff... I really had wished that Hasbro updated the weapons themselves to at least be specific to the characters, or to actually have the interchangeable parts (that would've been simply awesome).
I've seen some pretty slick customs of the weapons, but never one that swapped around perfectly.
Scorch's gun almost looks like it was meant to originally dismantle or something. It's one of those things on my "customizing to do list" someday.