How the West was Won

How The West Was One is an achievement/trophy that is awarded for achieving "the top rank for multiplayer experience". Despite what the description suggests, you only need to get to level 50 once, you don't need to pass into legend all 4 possible times and then get to that final level 50 (or level 250).

This is a 20g achievement on the Xbox 360, and a silver trophy on the PS3.