Air Domination

Destroy the Architects' ballistae on the Split Hill and return to Evdokia Bershanska.

Greetings! I am the leader of "Night Witches" Squad. My girls have crushed the enemy several times, both in the air and on the ground.
But now there's something new - they are firing light spears from some kind of giant ballistae. We've already lost several gryphons. We can't risk losing anymore, so we're not taking off before the ballistae are destroyed.

If you want to see our squad flying in the sky, then destroy the ballistae. The one who dominates the sky, dominates the ground.

You're done with the ballistae? Good, I will give an order to take off.