The Cardinal Sins of Halo Infinite Explained

Despite being nearly four years old, Halo Infinite remains one of the innovative and beloved Halo games developed by 343 Industries, now known as Halo Studios. Being the most recent mainline Halo game released, Halo Infinite is still receiving consistent updates and expansions to its multiplayer for its fairly active playerbase.

However, even players who enjoy Halo for its universe and story can still find a fun time in Infinite’s campaign, the first mainline Halo campaign to feature a dedicated open world, following Master Chief’s battle against the alien faction known as the Banished on Zeta Halo. With new players trying out Halo Infinite for the first time amid the franchise’s upcoming 25th anniversary in 2026, here are a few actions players should avoid making in Infinite.

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By José V. Rossi

The Biggest Mistakes Players Can Make in Halo Infinite

Not Rescuing Captured UNSC Marines

Ever since Halo: Combat Evolved, Halo campaigns have consistently supported the concept that players should rescue and defend their UNSC marines and friendly Covenant NPCs from harm. Not only is this lore accurate for all Halo protagonists, but NPCs can help players combat enemy forces, especially when given power weapons such as Sniper Rifles and Rocket Launchers. This remains true in Halo Infinite, but all marines encountered in Infinite’s campaign are POWs of the Banished.

Players can simply ignore the POWs, yet rescuing them will reward players with Valor and unlock new weapons and vehicles at UNSC Forward Operating Bases (FOBs). Plus, players can load five marines with powerful weapons such as Rocket Launchers and Skewers into a Razorback to make a truly devastating attack vehicle.

Avoiding FOBs, Banished Outposts, and High-Value Targets

With Halo Infinite being the first mainline open-world Halo game, there are a plethora of side missions players can take part in aside from the main story missions. These include freeing FOBs from Banished control, sabotaging Banished outposts, and eliminating a variety of Banished High-Value Targets, including various members of the deadly Bloodstars.

None of these side missions are required to finish Infinite’s main story, but they can reward players with special power weapons and reveal interesting lore about Banished leaders and their operations on Zeta Halo following Atriox’s supposed death. Players who skip these side missions may further miss out on some fun sequences, such as stealing a Scorpion tank from a Banished scrapping yard and blowing up a Banished fuel depot.

Not Playing Objectives in Multiplayer

The Halo franchise is as famous for its addictive multiplayer systems as it is for its engrossing campaigns, and the same remains true for Halo Infinite. In fact, all Xbox and PC gamers can play Infinite’s multiplayer for free without purchasing its campaign. While those who do skip out on Infinite’s campaign would miss out on the enthralling story of Master Chief’s journey on Installation 07, players can still have a lot of fun in Infinite’s classic multiplayer playlists such as Action Sack, Big Team Battle, and Firefight.

Many of these playlists feature game modes that predominantly have gamers eliminate players on opposing teams or eliminate hostile Banished or Forerunner NPCs, but a large number of game modes task players with completing specific objectives.

These objective-focused Halo Infinite game modes include, but aren’t limited to:

Assault
Capture the Flag
Extraction
Grifball
King of the Hill
Oddball
Sentry Defense
Strongholds
Total Control

Here, players are tasked with a wide range of objectives, such as capturing the enemy team’s flag, planting a bomb at the enemy team’s base, and scoring a goal, to name a few. Players can simply slay enemies in these game modes, just as they would in typical Slayer matches, but doing so may result in their team losing the match and infuriate those who tried to complete the objective. At the very least, players should strive to help their teammates complete objectives in objective-focused game modes to make sure everyone has fun and a good chance at winning a match.

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