Commanders

[lare2]

Quick question, what exactly is a commander when building detachments?

Are they just any hero? Or do they have to be your general?

Related to that, could you run a commander and have a subcommander as your general?

Thanks in advance. 

[Warfiend]

A Commander describes any unit with the Leader battlefield role
A Sub-commander describes any unit with the Leader battlefield role with a wound characteristic of less then 10.

Nowhere does it say that a Leader with a wound characteristic of less then 10 can't be a Commander.
Nowhere does it say that a Commander must be a General or vice versa; your general doesn't have to be part of a battalion if you take a battalion for your list.

Ps: I know I answered more then you asked but I figured I'd make it clear

Edited July 9, 2021 by Warfiend

[Urauloth]

Anything with the "Leader" battlefield role, unless I'm missing something.

If your general has the right W stat to qualify, there's no reason you couldn't have that model take up a subcommander slot in a core battalion. It's a little odd thematically, but it seems fine rules-wise.

[lare2]

Thanks, that makes a lot of sense. I'm so used to running apps for list building I always forget about battlefield roles.