I found some info on someone's comment, and I want to spread it around so what you can do is if you hit c to ragdoll on the roof of the bunker wait for your character to get up on their own and there's a chance that you will phase through.
this worked so quickly for me! Thank you!
I hit c to ragdoll on top of the bunker and on the second try I got in.
I can't go through, I just keep dying when I try ragdolling
