
Regardless of how guns do or don't function, be it in regards to fantasy world logic or not... communication is essential for combat RP. Especially if you are unfamiliar with who you're doing the scene with. Assuming it is not a pre-planned scene, if no one's being an OP jerk, you should be able to work out some sort of balance in the end. I would not worry too much about the whole "ahh! it's a gun and guns pwn everyone!" thing.