Take a note from the Walking Dead’s Whisperer faction and be able to skin the dead and wear said skin? Probably with a high Survival skill would unlock the recipe.
Now obviously anything non-zed would be hostile, and zombie could even “notice” the skin walker if they get too close. The skin itself could be very delicate and tear/break with the slightest damage.
Imagine that, wearing the dead skin, skulking (no running or that’ll tip them off) across town, then encounter a Mi-Go and it smacks you around a bit, but you live. But your dead skin didn’t. Now the dead all turn heads at you in unison. “Fuck.”