The best way to beat order #66 is by using these following weapons:
Pizza Saw-ser (front arm)
Dragon Tooth Chaingun (back arm)
Sling missle (Shoulder)
Use the sling missle first---If he responds with a weak attack, skip next turn.
Since you have skipped your attack, you will not need to skip again.
Next use pizza saw-ser. If your sling is recharged use again.
Next use the dragon chain-gun. this will do average 10 dmg.
Next use Sling missle, then Pizz sawser. he should be dead sometime before this.