the rescue stratos mission
In the rescue stratos mission,at the first nod base go along the side of the mountain and order umagon to take out the infantry there butnot the tanks that look like cycles capture one of them by using the mutant hijacker then use it to lure enemy soldiers far from the base to umagon and ghost stalker to kill them and avoid the spotlight in that base for it will blow your cover destroy the nearby power plants to shut it down then go through.
More tricks, tips and cheats for this game are right here - Command and Conquer: Tiberian Sun cheats
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