Assault is a Mission type identical to Sabotage, requiring Tenno to breach into the Kuva Fortress and destroy its navar cannon. Koro, Kuva Fortress is currently the only node with this mission type. It is accessible only after completing The War Within quest.


The mission is split into several major objectives:

  1. Breach the gates by delivering a moltecoil charge that is given at the beginning of the mission and wait until the moltecoil melts the locks.
  2. Find and disable 3 Navar-Cannon systems via hacking before it fires the tectonic shot at the colony. After hacking into the Navar-Cannon room, the players have two minutes to complete this task otherwise the mission will fail. Hacking a system or destroying an exposed circuit on the front of each bunker will lower its walls. Tenno may find it quicker to use the ziplines or parkour across the ravine, rather than running around to the back of other bunkers.
  3. Reach the command center, acquire 3 telemetry keys, and defend the telemetry console while the Lotus recalibrates its targeting systems. The mission will fail if the console is destroyed.
  4. Return to the cannon's control room and discharge the cannon, which is aimed to fire at a Grineer galleon.
  5. Return to the command center to eject and destroy the cannon's fuel cell.


  • Archwing enemies can attack players on this tileset.
  • Assault is the longest non-endless game mode to date.

Patch HistoryEdit

Update 25.7
  • Fixed missing explosion from the cannons of a Grineer Galleon in the Koro, Kuva Fortress Assault mission.

Update 25.3

  • Fixed progression stopper caused by players being able to pick up more than one Telemetry Key, except they stack and the newly picked up key goes missing as reported here

Hotfix 19.0.3

  • Polished aspects of Kuva Fortress Assault missions. Individual markers have been added to shootable targets during the 'destroy the targeting mechanism' phase, and added teleport action under the falling debris so players don't get stuck when it's destroyed.
  • Kuva Fortress Cache hunting has been moved to Fortress Exterminate missions as it makes more sense for the pacing of the mission demands.
  • Fixed 'You picked up a key' transmission on the Kuva Fortress Assault mission playing for all players rather than just the user picking up the key.

Update 19.0

  • Introduced.
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