Ghost of a Chance
If you choose to side with Nova instead of Tosh, your mission will be destroying the terrazine plant. You'll have both direct control of Nova and Raynor's Raiders. Initially, Nova will start on a southern section of the map, while your group of marines and medics will be a bit farther north. Nova is permanently cloaked, however missile turrets and ravens can still spot her and alert other units. You'll need to use the Raiders to destroy anything that threatens Nova.
Nova's most useful ability is dominate, which will bring one enemy unit to your side. There are several opportunities to make use of this skill. The first unit you should dominate is a lone siege tank. You can then place it into siege mode and take out several enemies from afar. Whenever a dominated unit is killed, you can make another selection for your army. When reaching the first terrazine target it may be a good idea to dominate the nearby battlecruiser and let it destroy the opposition.
As you take to the next targets, the raiders will provide extra units, such as siege tanks, reapers, and, banshees. You'll need to use these units to destroy turrets and ravens that can see Nova. In turn, Nova will be needed to snipe and dominate adversaries that could easily destroy the raiders. If the enemy should throw vikings your way, keep your banshees clear and have Nova snipe them down.
The last section of the mission is guarded by enemy specters. While they can't spot Nova, they can call in nuke strikes. When you see a noticeable red dot on the ground, get clear right away. These blasts can also damage enemy units, and sometimes they will end up destroying their allies, or even themselves. Additionally, there are stations where Nova can arm herself with nukes. You'll need these nukes to to clear paths in the south. Keep an eye out for a lone thor along the southern route, as this is one of the most powerful units at obliterating the final target.
