: I just played "Beware of low-flying defense drones". There is a
: terminal on the map where it appears Durandal and Tycho are arguing, and
: you see part of this argument. Anyways, could Tycho have armed the rogue
: drones and having a physical 'argument' of sorts with Durandal? Did
: Durandal bring you back to help settle this 'argument' and clean up
: Tycho's mess before things got out of hand?
Did you check the Volunteers discussion of this level.
http://forums.bungie.org/story/storyarchive.pl?read=3716
It may help.
The main reason why you are on this level is to rearm for the final battle on the Pfhor ship. Not sure why Durandal did what he did with the Defense Drones. Better minds than mine may be able to explain. The Durandal/Tycho exchange is a major plot thickner. Classic story telling.
The full Volunteers discussion is linked off the Story page