The first half of the mission is very straightforward. Destroy the radar domes as you hop from one island to the next. There are no real obstacles. The chronotank's missiles are very effective against the flame turrets that are scattered about. If you see what looks like trouble, you can leapfrog over it. Bringing down the SAM coverage isn't the end of it. Your reinforcements won't come until Tanya blows up the power plants for the remaining Tesla coil. Once you get the MCV, deploy it at the base of the northern plateau.