So, I have an issue that I quite simply can't understand why it's happening.

I'm working on a map, and decided that I'd bring the DP-28 into it. that worked fine, sounds and everything, but of course it will need an upgraded version. So I go through that process in the same way I did in a previous map, and go in game.

Once in game, if I use the 'give all' command, I only get the basic DP-28 and can't PaP it. The strange thing is, if I use 'give dp28_mp_upgraded' I get the upgraded one working perfectly. So clearly it's in the mod, but for some reason it's not working as it should.

Here's things I've tried:
-Checking the spelling on dp28_mp_upgraded when used
-Copying the _dlc3_code.gcs and _zombiemode_weapons.gcs from a map with the weapon working properly

Any help in this would be appreciated, thanks