Cobalt Plateaus - 7

Strategy

 * 1) Attack Rogue Leader every turn first and focus him on Red
 * 2) When the Rogue Leader is about to command all pigs to attack Red, protect Red with both his own and Chuck's secondary skill.
 * 3) Continue attacking the Rogues and then the Rogue Leader until you either win or lose.

In Summary:
Rouge Leader can command his allies to attack the same target, so take him down first.