It would be better to use FC2 as a metric for perfomance instead of ME regarding the xbox360.
Far Cry 2 on Xbox360 has the most insane pop ups i've seen in a game, and the textures are far from great in close up. The character design and some lighting elements are also very bad and distracting. It is nice to look at as a whole but I really don't think the game is a tehnical achievement, or at least not in the same league as MGS4.