In a way I have to say what was done is really low, but at the same time I can't help but marvel at the hollywood esque design to it.
I mean come on, don't deny that somewhere deep within you, you read about it and think
"Dang, that's some serious spy/assasain stuff going on"
It really sends one on a power trip to think of the intricate planning that goes into something like that, and in a way is very terrorist like. Live amongst a guild for months, get to know the people and make friendships (take a few piloting lessons). Then; BAM! Turn around and stab them in the back for the most damage.
What was done was wrong and very dishonorable....but it was soooo awsome.