just the title please! 
Competitive multiplayer. Balanced, fair and even. If balanced right, the game can be used for tournaments and events like Call of Duty, League of Legends, Dota2, Counterstrike: Global Offensive, etc.
Halo 4 failed in this department for a lot of people and 343 is promising that the game will return to its competitive Arena feel like we saw in Halo CE to Halo 3.
Give that a read, should hopefully offer some insight.
thank the guardians for that then,i thought they ment actual sports type gametypes like evolving grifball and others ones i played that sucked. dont get me wrong those that enjoy em thats great, but i thought the whole multiplayer scene was gonna be like american football as the beta glimpse made me feel that way too