mission Hotshot: Moonshine Shack crawled with bugs (PC)

During few attempts to make contract I discovered bugs:

1. enemies dont spawn correctly, sometimes there are no enemies. Sometimes breaks between spawns are very long, maybe due to lag.
2. sometimes when I spawn shotgun mission weapon just dont seem to hurt enemies at all and switches to my normal weapons, then mission failed

How to reproduce: fail mission few times to experience bugs very soon.

Edit: I kept doing it and next missions worked well and I passed it without bugs.

Sometimes the raiders don't want to come out from behind the shack.

Sometimes the 'blue' circle doesn't appear on the mini-map (when this happens I always fail).

Sometimes the ammo falls too far away, and the only way to get to it is to step out of bounds.

Sometimes the badguys don't die.