Endor Escalation - Minimum, best Team, Strategy

On the AT-ST waves, focus only on the walker. The scouts hit as hard as lettuce on a warm day.
On the trooper waves, do everything you can to eliminate the Recon Stormtroopers first, then the Stormtrooper Commander. Leave the stock Stormtroopers for last.
Save Teebo's debuff for the Stormtrooper taunt.
Save EE's cleanse for the AT-ST AoE.

Teebo, EE and Scout at G10; and CC and Logray at G9 will get it done for you.