What kind of BUG is this??

Was playing a Hellbug Arkfall yesterday and this happened.
The first image is some kind of glitch where the enemies and my character started doing some weird stuff. It would go in and out of this glitch for about 15-30 seconds. The other 2 photos are what happened immediately after the first image. They show enemies but they aren’t moving, you can’t shoot them and they are not attacking. All the players in this arkfall also vanished into thin air. There was a massive lag spike and it lasted for about 5-6 minutes. After the arkfall ended the game froze completely. After freezing, the screen went black. Ten seconds later I get the blue error screen.

Yeah, I've seen the same thing happen once before... which also ended with a blue error screen o' death.