I beat halo 3 on hard...legendary is next.
Recently I beat Frontlines:fuel of war. The game was rather dissapointing at the end. No big boss fight...just buch of guys storming the center in moscow.
Im a gamer that rarely beats games these days as I tend to get bored before I reach the end or I get something better.
Here are all the games I beat fully on my 360 in the year and a half of gaming with it:
Gears of War
Halo 3
COD4
Dead Rising
Fear
Fear:Extraction Point
Frontlines:Fuel of War
Lost Planet
DMC4
Not very many at all as you can see...