Can Zero Drive play opponent's units that were banished by its Deathknell effect?

Ruling: Yes, Zero Drive can play opponent's units that were banished by its Deathknell effect, even though those units go to their owner's banished zone.

Sequence:

• Gain control of opponent's unit (e.g., via Hostile Takeover)
• Equip Zero Drive to that unit
• The unit dies and is banished by Zero Drive's Deathknell
• The unit goes to opponent's banished zone but is tracked as banished by Zero Drive
• Zero Drive's ability can play that unit from opponent's banished zone

Nuances:

• Units are always banished to their owner's banished zone, not the controller's
• Players typically place cards banished by Zero Drive physically under it for tracking purposes
• This interaction works similarly to comparable effects in Magic: The Gathering