EDC Update: Halo 3 ODST

Goal #2 of my extreme difficulty challenge is done!
I just completed Halo 3: ODST on Legendary difficulty, which not only adds another notch to my challenge but it also means I've beaten every Halo game so far on legendary difficulty. Despite being a placeholder between Halo 3 and Reach, I found ODST to be an interesting and enjoyable side story with a darker tone, better characters and lots of backstory for the Halo series. If you like shooters, give ODST a shot, it's probably cheaper now, plus it will get you into the Halo Reach beta that just started up today.

Here's my updated progress:

Halo 3: Legendary difficulty in solo mode
-done
Rainbow Six Vegas: Realistic Difficulty in solo mode
-done
Rainbow Six Vegas 2: Realistic difficulty in solo mode
-done
Gears of War: Insane difficulty in solo mode
-done
Gears of War 2: Insane difficulty in solo mode
-done
Mirror's Edge: Hard difficulty
-done
Halo 3 ODST: Legendary difficulty in solo mode
-done
Mass Effect 2: Insanity difficulty
-approx. halfway with vanguard (tip: vanguard is unbalanced and weak on high difficulty, attempt this with a different class)
Assassin's Creed: 100% complete
-Templars, Jerusalem flags and Damascus Flags still needed
Project Gotham Racing 4: Receive a platinum medal in every arcade event
-approx. 20% complete
Splinter Cell Conviction: Realistic difficulty in single player
-10% complete