Country:
When all hope is lost and the fate of humanity hangs in the balance, the Master Chief stands ready to face the most ruthless enemy he has ever faced. Step into the armor of mankind’s greatest hero for an epic adventure exploring the vastness of the Halo Ring. To experience the campaign, purchase Halo Infinite (Campaign).
Multiplayer:
Legendary Multiplayer Unlocked:

Halo’s acclaimed multiplayer returns, reimagined and free! Seasonal updates evolve the experience over time with unique events, new modes and maps, and community-driven content.

Arena:
Halore goes back to its roots with fair starts, on-map gear, and 4-player squads to deliver the ultimate arena shooter experience. Great Team Battle:

Create endless combat possibilities by mixing and matching a wide variety of weapons, vehicles, and gear to experience chaos and fun for large teams that span the spectrum of the Halo sandbox.

Spartan Customization:

Become a unique Spartan with an extensive and deep customization system for players. Earn and discover new cosmetic items just by playing the campaign or multiplayer. Or for even more cosmetic rewards, purchase a Battle Pass that never expires and unlock new content at your own pace.
PC Settings and Adjustments:
Halo Infinite was developed for the PC. From advanced graphics settings, ultrawide/super ultrawide support and three-key bindings to features like dynamic scaling and variable frame rates, Halo Infinite is the best Halo experience on PC to date.