Halo 4 is regarded as a stellar entry in the superstar franchise, but what could make it better you ask? Well I'll tell you. It's the voice of Marvel's Thor booming out of Master Chief's helmet, and that's exactly what Gugga Leunnam gave us in this cool fan trailer for Thor: The Dark World. Using the cinematics of Halo 4, Leunnam does an excellent job of matching it almost word for word, and the action syncs almost perfectly. Kudos are in order for a job well done, and you can head to his YouTube page to see more of his mashups.