Cannot seem to find a command for that, any assist greatly appreciated

Easiest way is to install https://umod.org/plugins/anti-entity and use the following config.

{
  "Entities that are denied from spawning (cant spawn, long prefab names accepted)": [
    "assets/rust.ai/agents/npcplayer/humannpc/tunneldweller/npc_tunneldweller.prefab"
  ]
}

WhiteThunder

Easiest way is to install https://umod.org/plugins/anti-entity and use the following config.

{
  "Entities that are denied from spawning (cant spawn, long prefab names accepted)": [
    "assets/rust.ai/agents/npcplayer/humannpc/tunneldweller/npc_tunneldweller.prefab"
  ]
}

You! Are the Man!  So appreciate that!