Deadly Efficiency is a mod that increases the damage of an Arch-gun while aiming for a brief time upon reloading from an empty magazine.


Rank Damage Increase Duration Cost
0 +20% 1.5s 4
1 +40% 3s 5
2 +60% 4.5s 6
3 +80% 6s 7
4 +100% 7.5s 8
5 +120% 9s 9


  • This mod has a buff icon which appears next to the player's health and shield display to indicate it is in effect.
  • Currently, in space combat, this mod does not function at all. Likely due to arch-guns "recharging" in space instead of reloading as they do in atmospheric combat. 

Patch HistoryEdit

Update 24.2
  • Introduced.

Last updated: Hotfix 24.2.2

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