You cant hear ***** in this game. In place like factory you hear that metal foot step sound but in open area like in forest or something like that you cant hear nothing or if you hear they are allready in 5m away.
I play on Xbox and whats funny is you hear no footsteps on anybody sneaking up on you in actual gameplay, on the kill cam you hear them just fine !!
Mind you I use Astro A50 headset which is useless in this broken sound game !!