Is there a specific name for the Tunnel Dwellers?  To spawn one, it's "spawn tunneldweller", but when you kill one, it just spits out a random number, like "531399[531399] was killed by blablabla".  This is needed for several plugins that take npcs into account.

There's actually a 'TunnelDweller' component.  This list might be useful:

https://github.com/OrangeWulf/Rust-Docs/blob/master/Entities.md