Alright so I found a bug that's rather.. abusable, I picked up the x-bow crate then a random weapon drop appeared, I picked that up thinking it'd wipe the x-bow instead it overwrites it, replaces it and then spams your screen with a dvar warning about being unable to write the weapon, then from there you can pick up box weapons essentially being able to achieve an arsenal of weapons (of course only the first two w/o backpack being upgradable), I picked up another weapon crate thinking it'd fix it when I changed weapons but nope.