Dupe / Exploit

Greetings, I have discovered some game breaking bugs/exploits.

The first bug you can dupe every backpack if someone died, and you pick up the backpack, but it didn't happen every time.

The second bug if you have a full stash with items and inside the container is a backpack but you had already a backpack on your body the equipped backpack will be duped.

You can glitch yourself into buildings that you can't shoot by the AI if you use the teleport mechanism.