I got pulled through the floor on Tribute....
I think it might have been a glitch but I was defiantly pulled through the floor. We where holding out in operations and it was on wave 30. Me (playing as Hudson) a friend playing as Hicks and two others using their customizable marine skins. We had all three turrets set up and the all ran out of ammo around the same time. We decided to go around through medical and use the doors to buy us some time to get back into operations. I turned around as we went down the hallway they escaped through in the movie and I guess I was standing right over "Hudsons hole" and using his legendary weapon because when I turned around i managed to get off a couple bursts before being pulled into the floor by a REGULAR lurker.
I dont know if this is a triggered easter egg or some kind of glitch I dont think this is an actual glitch because of two reasons
1: The Lurker was normal and not customized, and there are never any normal aliens past wave 12 or 15
2: It didn't seem like a normal pounce because I wasn't given the option to defend my self, I saw the lurker look up at me and it did a head bite animation before I died. I couldn't be revived, I died instantly and had to buy back in.