I admit that I wasn't at all interested in this seeing as how short it was. To my surprise, it turned out to be really cool! I think the main reason it works so well is because of how great the animation is. I can tell it wasn't just Almightyhans working on this. It was nice to see all this crazy stuff going on. I haven't played the "Halo" games, but I have played some fan versions.
Because of that, I am familiar with the enemies. That certainly was overkill at the end. There are some nice facial expressions in this too. I appreciate the good sound effects and squeals. Not much else to say, just keep making great stuff!