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Quake IV

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Disable the Air Defense Cannon in Quake IV. Voss awards you the Grenade Launcher to start this mission.

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Disable the Air Defense Cannon in Quake IV. Voss awards you the Grenade Launcher to start this mission.

Walkthrough
  1. 1
    Voss awards you the GRENADE LAUNCHER.
  2. 2
    Pick up CLIPS and GRENADES from nearby crates.
  3. 3
    Follow your squad through the trenches, engaging Strogg Marines and Gunners. Use cover (press the cover button to crouch behind walls or objects) when necessary.
  4. 4
    You will reach a locked door. Voss orders you to find a way to open it.
  5. 5
    Climb on stacked crates to the right of the locked door, then jump onto the door frame and higher ground.
  6. 6
    A Grunt will emerge from a hole; defeat it with the Shotgun.
  7. 7
    Drop into the hole, grab the SMALL HEALTH PACK if needed, and enter the small hallway.
  8. 8
    Find the door with a green panel beside it and unlock it by interacting with the panel.
  9. 9
    Return to your squad. Morris stays behind.
  10. 10
    After Voss and Sledge enter, a Strogg Marine drops from the ceiling, followed by two more from a door.
  11. 11
    Go through this door into a large room with multiple doors. Engage approximately ten Strogg Marines.
  12. 12
    Enter the next room and defeat the lone Strogg Marine.
  13. 13
    Focus on the right side where Strogg Marines and a Gunner will emerge from four doors. Stay on the far side and use your Machinegun to defeat them.
  14. 14
    Jump down and exit through the accessible door into another hallway.
  15. 15
    Follow the hallway and turn right to find the Air Defense Cannon controls.
  16. 16
    Defeat the two Strogg Marines and the Gunner protecting the controls.
  17. 17
    Run to the controls to claim the cannon.
  18. 18
    Use the commandeered cannon to make your own path to the Hannibal's landing.
Tips
  • The Grenade Launcher has a powerful blast radius but can be difficult to use effectively due to grenade trajectory and potential self-damage, especially in confined spaces. It is useful for clearing rooms from above.
  • Your teammates are invincible during the initial trench sequence.
  • Voss is armed with a powerful Hyperblaster.
  • Collect the CLIPS, GRENADES, MACHINEGUN, SMALL ARMOR VEST, and LARGE HEALTH PACKS found in crates and around the locked door area.
  • Use the Shotgun to defeat the Grunt that emerges from the hole.
  • The Grenade Launcher has a clip size of 8 and a maximum ammo of 50. Grenades explode after approximately 3 seconds or on contact with an enemy.

Objective: Fire Away - Use the commandeered cannon to make your own path to the Hannibal's landing.

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