bugged wood door or change?

Today I and my friend got raped by the 7UPG Clan. They shot with a shotgun through the wooden Door and it seemed they know immediately when you spawned at the sleeping bag. So my Question is, was this just a hack, a new feature from the update or a new bug?

Have a nice day,

It seems you can’t even break a wooden door now so everything just goes through it. It’s a bug.

same with sleeping bags