I have a lot of those same issues. Guns and clips won’t reload, bullets pass through zombies
The newest one for me, and going on since the server cam back up last week, my characters progress won’t save. When I go in, I’m spawning at a previous save, and none of my progress in the game has saved. It doesn’t matter how far I travel or long I play. Exit out normally, log in to the same server, and I’m back where I started from a week ago.

My character keeps looping back in time. I exit the game normally. When I go back in, on the same server, my character isn’t where I saved. It’s back a few minutes, maybe more, to before saving. FIX IT!