Regarding stuck at 0% loading screen issue:

[Xenomorph - Drone]

On 20th of December the devs going to implement the bug-fixes which include:

6. Network Stability: Under poor network conditions, the map loading issue has been partially resolved! We're on the case, ensuring you don't get kicked offline due to connectivity issues. (There are many reasons that could cause this situation, and we have currently fixed part of the issues. We will continue to analyze and address other potential causes in the future.)

Well now I have doubts... This is probably the first time I see a "Partially resolved" fix. I'm not sure what this means, but we will need to give a feedback of the issue after the update.
If anyone will still have the issue (stuck on loading screen 0%) after the update - please be vocal about it. Either say in here, or make your own post, make a ticket to the devs, providing all needed info, guys, make a notice in the discord channel as well.
I'm gonna do it as well, once I test the game out after 20th of December.