User blog comment:Snicker/Mass Effect 2/@comment-170990-20110613060047/@comment-6870-20110613084749

Possibly you've mistaken the genre of Kasumi's loyalty mission.

It's not Thief: The Mass Effect. It's more like a James Bond thing where Bond smooth-talks his way into the bad guy's party, puts down a couple of guards in a quiet, out of the way place with his silenced Walther (the place must have good soundproofing because you don't have a silenced gun,) gets into the vault only to find that it was a set-up all along, and then has to have a roaring 007 rampage of escape.

Now, I'll admit it is a problem since Kasumi is explicitly stated to be the "best thief in the galaxy," and that this plan is wholly inappropriate for a Thief to come up with, but if you look at it as a James Bond "infiltration," then it works.