No, this isn't an Antigua charge change thread. We already have one on the front page, so go there for that. This instead is addressing a bug I've heard about and saw (once) with the Obsidian Carbine (if this isn't factual and you have proof, I'll take this down when I get back from school and remember).
The bug/error/weird design choice, from what I've heard and seen, is that in the charge shot and you shoot the tentacles, said tentacles don't go over walls. I mean the small walls the bullets go over, not brick/steel/building material walls. That's really it. Just, make the Obsidian Carbine's charge shot go over walls. Even if said charge shot is used sparsely, this still should be fixed.
I tried this in advanced training hall and the tentacles still go straight across low walls and chasms.