This is how i do it with TH7 with 4 army camps at level 5
22 Giants 1 Healer archers and goblins divided equally and 4 wall breakers,and my CC consists of archers only
Take out the closest air defence with the giants,then release the healer,after that send in the archers( note,dont let the archers get close to wizard towers) after the wizard tower and mortar relase the gobs,i gureenty you that you wont be running out of time.
Hope it helped,
Cheers






