Video for No One Left Behind
Obviously not mine, here it is since it is currently achievable.
#97 in USA to complete Halo 3 (w/ all DLC)
#777 in the world to complete Halo: Reach (1000/1000)
#836 in the world to complete Halo 4 (1000/1000)
Proudest Achievements - Halo 3 & 4 (no boosting at all)
GH: Metallica (Band/BvB), DOA4