[skroq]

Me and my Co-op buddy did this yesterday. Build defenses and hide in ur base and protect it. We found out that easiest way to do it is build superweapon and toss it 3 times along with orbital drop (so total 6x drop 6x vaccum). Easy, because later enemy is throwing less forces your way. Key is to have a lot of flaks and sentry for their parachute drops.