Certain upgrades you can find and purchase in Armored Core VI: Fires of Rubicon are received through OS Tuning, giving some of the best abilities for your mech through unique expansion parts. Challenging enemy Armored Core in single combat gives you the tools to buy these special attachments. These additions can be quite strong, ranging from shields that activate when you reach low health to a deadly energy explosion.
The OS Tuning section of the Garage holds system unlocks and core expansions that act as the upgrades you can equip to your mech in Armored Core 6. To receive any of these parts, you have to spend OS Chips, a currency separate from the standard COAM currency. Chips are rewarded in the Arena mode, where you challenge enemy Armored Cores in 1v1 battles, similar to a PvP mode.
The Best OS Upgrades to Get Early in Armored Core 6
| Best Early OS Upgrades |
||
|---|---|---|
| Upgrade |
Cost |
Description |
| Boost Kick |
1 OST Chip |
Your mech performs a devastating kick attack after performing an Assault Boost. The heavier the AC, the more Impact and regular damage this inflicts. |
| Weapon Bay |
2 OST Chips |
Allows you to equip hand weapons to your mech's shoulders. Pressing the shoulder buttons now switches between two hand weapons during a sortie. |
| Assault Armor |
3 OST Chips |
Unlocks a core expansion that gives your mech the ability to unleash a pulse explosion centered on itself. This blast causes an Area of Effect (AoE) shockwave that damages enemies and even eliminates oncoming projectiles such as missiles. |
| ACS - Dynamic Deflection Control Tuning |
2 OST Chips |
Improves the precision of your mech's ACS-based posture control, reducing the damage dealt by all incoming enemy attacks. |
| Repair Kits - Optimization |
3 OST Chips |
Boosts the effectiveness of your Repair Kits, granting more healing to your mech during combat. |
Another fantastic OS upgrade you can collect is Control Tuning expansions for different weapon types, which increases the damage output of specific tools. However, these parts depend entirely on whether you prefer to use Kinetic, Energy, Explosive, or Melee weapons with your mech.
Many of these upgrades can be improved further by spending more OST Chips on updates to each expansion part. The evolved mech warfare encourages you to constantly search for ways to improve your mech design with OS Tuning. Progressing through Armored Core VI: Fires of Rubicon will reveal more OS upgrades that might be best to use for your changing mech more than your first choices.
