Hello!
We are closely watching the problems with the game and try to fix them as soon as possible. Everything you write in this thread is monitoring and fixing (https://steamcommunity.com/app/1049800/discussions/0/1771511442699745334/).
At the moment, critical bugs have been fixed, build and zombie modes have been launched, errors with weapons and skins, as well as many other minor errors fixed. We continue to work on the rest.
Do not forget to forcibly update the game.
Thanks for revealing the problems, good game!