Hello, at second attack I send bomber at first wave, on his line be 4 buildings with 1% durability and Construction Yard with full durability, so bomber with almost 100% of durability did only bit dam...
Wait a minute, I got 37 guy who attacked me, so its not so bad, here what I use https://imgur.com/a/Wkk9YlK . But most effectively deployment of troops take some time before every battle :)