The card text says: Action : Focus 2 piloted Vehicle units to destroy all defenders.

So does that mean I can focus my opponent's own piloted vehicles (or even one of mine and one of his) to trigger the card? If so, this card seems pretty amazing.

The card text says: Action : Focus 2 piloted Vehicle units to destroy all defenders.

So does that mean I can focus my opponent's own piloted vehicles (or even one of mine and one of his) to trigger the card? If so, this card seems pretty amazing.

No, you can't "pay" a cost with/on units you do not control