In episode number5 mission5A you have a base a couple of supplydepots an engineeringbay a barracks a factory hooked onto a machineshop.
Then some ghosts drops nukes onto you and it kills all of the guys that could of helped you out.
Although there is a way to prevent this from hapening.Once you hear a voice saying you called down the thunder now weap the wirlwind you instantly start building goliaths set them on the left and right of your incampment.
Build 10 goliaths [5 on each side].Thenset at least 2 missle turret on each side some ghosts will come.When they do send the goliaths to destroy them.
Then 2 nukes will come from the front the guys that help you will come right beforethe front nukes will come get all of the guys that help into theback of the minerals you mine and thats how you do it.
[note:you need mega build and give me cash/gas to do this helpful hint].give me cash/gas is cheat.