I came up with The Abandoned One having keys jangling from a 18 Meter range when he is nearby. Or ammo noise like what the Workforce has when they have tools on there backpack.
#Abandoned One Change
blissful shale
thick jay
Would make it a lot easier to identify that particular enemy. I'm all for it, considering he already doesn't have any audio apart from footsteps when he is right in front of you.