Halo 4 - Knight in White Assassination Guide

Halo 4 - Knight in White Assassination Achievement Guide / Avatar Award Guide

I actually managed that on Legendary, which was a bit of luck for me. One thing I noticed is once they turn your back on you they will take 3 or 4 steps before being able to respond to your presence, enough time to sprint in for the assassination.

You really don’t need a video guide for this achievement.