Backpacks / Extendable inventory system

Obviously, this would mean you have limited inventory space. IR and maybe some divisions would have options for backpacks or even tribals getting something like a sack. Not sure of what the drawbacks would be if any, maybe limited speed like some guns slow you down or something like that. would allow for you to carry more stuff and let squads dedicate a storage role for someone in the group or something like that.

Would be cool since I could get them implemented with the morphs or something and also adds stuff for survivors.