I noticed this yesterday after downloading the update. I was wondering around the Cosmodrome, when I noticed two Shanks not reacting to me, as I walked upto them it appeared the AI was completely dead, yet they looked like they where in their "rest" state: [url]https://www.dropbox.com/s/gf7u4qdotwylpf8/Firefly-Perk-Shank-Bug1.mp4?dl=0[/url] I figured out after a bit, it was because my 'Promixa Centauri II' scout rifle had the Firefly perk, and I believe the Shanks where being killed by the explosion. This is my replication of the bug, which clearly shows the Shanks starting to fall after dying but stopping in mid air: [url]https://www.dropbox.com/s/qlsj83iwkklkp6g/Firefly-Perk-Shank-Bug2.mp4?dl=0[/url] [b]Step to replicate:[/b] Kill a mob standing next to a very low level Shank with a Firefly perk enabled weapon.