Combat Extended Zetrith's MP Fix

Fixes Combat Extended SyncWorker registration failures
This isn't going to stay on the workshop for long I'm new to this but am going to try to add a pull to MPCompat
I didn't do much I only fixed his 5 errors that generated on startup which fixes all his issues with multiplayer everything else that's synced is the blood sweat and tears of the original author he did a really great job and spent a godly amount of time having it sync in his original mod.

Fixes:
- ammo switching
- fire mode changes
- loadout management
- loadout slots
- CE inventory tab

It should sort on it's own in the about but just make sure that this is loaded after both combat extended and MP compat.