How does the Armadillo rearm?

My Scarab is automatically reloaded with ammo between missions, but my Armadillo is not. I’ve left it at a base with a vehicle bay and it gets repaired but its ammo isn’t replaced.
Is this yet another bug or am I missing something?

Supposed to rearm either in between missions or at base. Sounds like a bug.

Thanks, I’ll report it as a bug now. Meanwhile I might as well scrap the vehicle as its useless.