I love Halo and Bungie. The only games you'll see me play thats NOT halo are Battlefield BC2 Battlefield 1943, Flight Sims, Oblivion, Skyrim, and Minecraft and CoD on occasion.
Good question, and a good answer, but I just want to add that there is a few gametypes that are easier than others to get this vidmaster, such as Team Slayer, Team Swat, and a few other game types dont reset your exp at all, but if you dont play that certain gametype within, like 2-3 weeks, it goes down either 1 or 2 points, and your true skill MAY go down 1. I've got all the vidmasters, so if theres any of 'em you need that I can help with, I'll be more than happy to oblige.