» Sun Dec 11, 2011 9:40 pm
As for the 'report to Moore' hint, it will tell you to report that they are dead regardless of whether or not you actually killed them due to a dialogue glitch. The ending slides will show the actual result as determined by your actions, however.
To get the "best" ending for the Khans you'll need a high Speech skill, as you have to convince Papa Khan to leave the area after getting him to break with the Legion. Upon doing this it will, as noted above, tell you to report the Khans' destruction to Moore, and that will be the only dialogue option with her to finish the quest. The game will know otherwise, however, but as there's no appropriate dialogue entries for this all you can really do is ignore any references from passersby to the Khans being wiped out.