Domination
From Halopedia, the Halo wiki
Domination is a multiplayer gametype introduced in Halo Wars 2. Players must capture Domination Points and maintain control over them in order to reduce their enemies' ticket count. On the map Ricochet, these sites are five Forerunner beam emitters defended by Aggressor Sentinels. The first team to have their ticket count reduced to zero lose the game. This was the first mode made available in the Halo Wars 2 Open Beta.[1]