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Garrus is taking forever to fix the AA gun

Author

David Craig

Published Aug 10, 2026

Garrus seems to be stuck during the mission Arrae: Ex-Cerberus Scientists. What can I do to help him? Cerberus attacked and I killed them all. Now dramatic music is playing but nothing is happening. What can I do?

5

4 Answers

Missions will "stall" like this if there is an enemy hiding somewhere, as the game is actually waiting for combat to end, not a timer.

You can usually flush out remaining enemies by running out from cover, or failing that, meticulously checking every nearby nook and cranny for hiding enemies.

1

Try reloading an old save point...might just be a bug

I reloaded last save game after the above bug and choose my other ally to activate the AA gun and i didnt mount the gun this time and it worked for me, maybe try this if you have this issue

The AI for the invisible phantom is a little buggy, so expect this to get stuck somewhere and be stupid hard to find. There is a quick save right before the second switch so just load the last save and when the phantom drops nuke the ever loving crap out of it before it disappears.