It's not been played live. Even Next in Line was claimed to have been played live a couple years ago, by some amateur-laden setlist, when it wasn't.
The songs that were never played live are:
Wrath Within
Taste of My Scythe
Northern Comfort
Triple Corpse Hammerblow
If You Want Peace...
Next In Line
Lobodomy
Done With...
Roadkill Morning
Pussyfoot...
Cry of the Nihilist
Northpole Throwdown
I think Taste of My Scythe should definitely be played live. I'd like Hatebreeder played live, too. Last year I encouraged to play Warheart again and they happened to include it in the setlist as opener after over ten years, and I was very happy with that; it was an omen of good things to come.
Songs that were played only a few times include Black Widow, Little Red Ridin' Hood, Knuckleduster, Punch Me I Bleed. I think all these deserve to be played again, except Black Widow, which wouldn't really work cos it needs those black metal vocals.