Both modes were announced at E3 this year, but we are expected to hear more later this year. Some other key features that were revealed during a real annoying ESports host style gameplay were flag juggling, instant replays, and some perks for community driven gameplay.
They also announced a new tournament that will have over 1 million dollars in prizes for pro gamers.
Also revealed was a new Halo 5 Xbox One 1 TB bundle that includes a digital copy of the game pre-loaded and ready to go. This will be ready for pre-order later today.