Halo Infinite's finally getting the mode fans have been waiting for

gamesradar.com:

Halo Infinite is finally getting an Infection multiplayer mode this summer, 18 months after the shooter’s launch.

The Infection multiplayer mode has made an appearance in every mainline game since Halo 3, but it was mysteriously missing from Halo Infinite along with many other fan-favourite features. Essentially Halo’s take on a zombies mode, Infection pits a team of spartan survivors against a team of infected zombies whose job it is to spread the infection. The hunt goes on until the timer runs out and Halo’s eccentric suite of weapons made the mode a series mainstay. Infection is now joining the party on June 20th alongside season four.

Rather than theming Infection on a nasty plague, Halo Infinite has set up Infection as a hostile artificial intelligence takeover. In the game’s fiction, enemy AI Iratus has taken over a couple of chunky spartans and manipulated their armour, turning friend against friend. That gives the mode a fresh coat of paint with a particularly nasty-looking robot face attached to each infected soldier. 

Infection took a while to drop into Halo Infinite, but it wasn’t the only feature absent at the game’s launch. Split-screen co-op was another long-time Halo feature that was at first delayed and then cancelled altogether due to technical issues. Some of those problems and delays could be attributed to problems at developer 343 Industries which recently suffered a blast of layoffs at the studio and the cancellation of campaign DLC. 

In fairness, Halo Infinite has had some very bright spots over the last few months. Forge mode allows players to make custom content and the community went wild with ideas, creating over a million maps. Some maps even recreated the iconic Kokiri Forest from The Legend