Just a quick note to say that if you want to watch Halo 5's multiplayer beta, you can check it out right here. Well worth watching. They have a two teams of Halo pros going at it.
The Beta starts December 29 and you can get access through the Halo: Master Chief Collection.
UPDATE: The match is over. It was a pretty cool look at the new game. For me personally, it was a trip down memory lane watching all the old pros go at it.