I know very little about HALO. I played the first one a couple times when it came out and got bored. One of my fans asked me to try and build the Masterchief with my figure design, so I gave it a shot. He didn't turn out too bad. I guess there have been different types of armor used during the games, so I took what I could see in the pics. I started with the helmet because I knew that would be the most difficult part. I went 6 wide on the helmet, 5 looked too thin. The curved armor on the body looked too sleek, so I went with the slopes instead. I built a few of his weapons, the Magnum, assault rifle, and shotgun. I also did a couple from the Covenant, the laser rifle, and the energy sword.