Crossbows have a muzzle flash, probably not the intended use of that feature. I noticed a problem with reloading the flare gun. The flare ammo doesn't actually come out of its place in the inventory, and when reloading sometimes my flare would lock up and not be able to fire at all till I either dropped it or moved it around in my inventory. Also when I swim my backpack and gun disappear. Not sure if that's a new issue or not.