The Tank O/S Upgrade increases the maximum health by 5 hitpoints.


  • Tank offers little value for lower difficulty levels. For example on Normal difficulty, the maximum health is 35 HP at Endurance 1, and each endurance level increase adds 5 HP more
  • However, on higher difficulty levels (especially on Impossible), this upgrade becomes valuable due to extremely low maximum health, high Cybernetic Modules cost of upgrades, and low HP increase with higher endurance levels

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