Breakout

You're given another choice of which mission to take. You can continue to side with Tosh and receive the special spectre unit, or betray him for Nova and acquire ghosts. Breakout is the mission when siding with Tosh.

You only have control of Tosh for this mission and will have to rely on Raynor's Raiders for support. You're permanently cloaked, so standard enemy troops cannot detect you. However, some units can still detect your presence and alert their allies. These include ravens, missile turrets and ghosts. Their range of detection will appear as a white circle. In some cases, you can simply stand outside of this circle and snipe the enemy.

You can also rely on Raynor's Raiders to provide distraction, allow you to destroy structures and take out enemies. They will also set up a forward base to pump out more soldiers. The friendly medics will heal Tosh and you can use his spectre powers to restore energy. The assaulting Raiders will also give you a chance to rescue prisoners, who will man extra vehicles such as the diamondback.

Near the end of the mission, Tosh will gain access to nukes. He has a limited number, so they should be used on key targets: areas with too much detection to destroy cloaked, or massive amounts of enemies that can be cleared in one swoop. With every enemy destroyed and building leveled, the mission will end in victory.