Any tips for using flying units in combat?

[PheasantPlucker]

Hi guys,

Fired up a random game and got handed Caleum, who I have not tried before.

I am scratching my head trying to find a way to get some advantage of being flyers in combat, but it doesn't seem to be much use. Basically the troops seem to attack the closest enemy regardless of what tactic I set them to.

So I'd appreciate any advice as to how to get some advantage from their flying capabilities.

Cheers.