You should consider the overall quality of both those headsets and many more. Not just for Co

BO2 footsteps, but for the general use of a headset.. Sound.
Y'all already know that every headset is processed Surround Sound [Not legitimate 5.1 or 7.1]. So in the end... A stereo and/or a Surround Sound headset should sound the same. Only difference that i can come up with is the options you gain with buying a Turtle Beach PX5, Astros A40/A50, or Trittons. Like bass, presets, ...etc.
In the end.. You can do whatever the fuck you wanna do!