Nice job,
But I must point out a few inacuracies :P The Halo 1 fragmentation grenade is smoothe, like an egg, it dosn't have bumps on it. The one in Halo 2 does, but it's green. Elites don't use plasma pistols, they use plasma rifles or needlers. The needler isn't that color. Flood spores explode into yellow mist, they don't have red blood :P Plus the SMGs, which I'm assuming are based on the SMGs from halo 2, are brown, and look entirely different. The covenant wouldn't have a sign writen in english, their symbols look like circles and lines, and Covenant flying units are called Banshees. And last but not least, the master chief is green. But, since you've played the game, I'm asuming you already knew all of this and were just too lazy to change it. So, Kudos on a nice job.