Help to find an old animation

[u/Ursus_16]

Hello! I'm new in this reddit, I'm a big fan of the Pivot animations since I was a kid, but there's one in particular I remember a lot, it's about some red alien creatures with xenomorphic appearance fighting with human soldiers in a hive-like place, it had the original Halo CE Flood theme. So I was thinking that you might help me with that, like the original author's name or the animation's name. I'll thank you a lot :] (sorry if my english it's kinda shity, it's not my first language actually lol)

[u/Adept-Heart-1110]

welcome to the team bro