The plot focuses on the wars between 26 mankind of the century, “Halo 3” takes players into eye-catching gun battles with the first-person perspective. Players will play the role of Master Chief to fight the Covenant and the Flood. The game has 2 main modes: story mode and campaign mode, in which players will be provided with basic weapons and grenades to be able to participate in melee attacks. Instead of having to fight alone, players can also participate in cooperative battles with up to 3 players. Collecting in-game items will help players earn Gamerscore rewards at each game level.