Secret Alliances - Mission 23 (3 Stars)
Got 3 stars using the same strategy as above.http://youtu.be/XOv4viZSsIQ
Should be able to do even better with better unit placement. Drop 2-3 the troops near the SC should kill the enemy Hero and Contraband even faster. With the SC placement, the troops will focus on the hero and contraband first, then proceed to destroy bays, which will finish the mission faster. You can also drop the second batch of troops a few second earlier as well.