Armored Core 6: Fires of Rubicon – OS Tuning Explained | All OS Upgrades and Which To Unlock Early

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Building and optimizing your AC in Armored Core 6: Fires of Rubicon is just as important, if not more important, as fighting in FromSoftware’s new mech game. Having the right parts and weapons can be the difference between quickly dispatching all of your foes and spending hours stuck at a single location. Getting parts and weapons is just one part of the AC building process, however. There is another system known as OS Tuning that becomes available after the first few missions of Chapter 1 and gives players the chance to unlock new moves and abilities while also upgrading certain stats. This guide will provide a full list of all the OS upgrades and fully explain the OS Tuning system in Armored Core 6: Fires of Rubicon.

More Armored Core 6: Fires of Rubicon Guides:

Armored Core 6: Fires of Rubicon – Full Achievement and Trophy List | Armored Core 6: Fires of Rubicon – How to Change Weapons, Colors, and More | AC Customization Explained | Armored Core 6: Fires of Rubicon – Illegal Entry Walkthrough | Mission 1 Guide | Armored Core 6: Fires of Rubicon – How to Defeat the HC Helicopter Boss Fight

OS Tuning is a feature found in the Garage that is unlocked after completing Mission 9: Retrieve Combat Logs. This system is unlocked alongside the Arena, another part of the Garage where players take part in one-on-one battles against some of the games named AC Pilots that you will encounter over the course of the game’s main story. The reason these two parts are unlocked together is because they are intertwined with one another.

Defeating the bosses found in the Arena will unlock OST Chips, a currency that can be spent in the OS Tuning Section to get upgrades. Winning battles in the Arena is the only way to get OST Chips and