Can a player play an exhausted unit directly to a battlefield they control (as opposed to their base)?

Ruling: Yes, a player can play an exhausted unit directly to any battlefield they control, as any location you control is a valid target.

Nuances:

• The specific subrule defining valid targets was accidentally removed in version 1.1, but the rules as intended (RAI) remain clear
• This was confirmed by Kelly (game designer/authority)