Pronogo old Starcraft co-op campaign called, "Cavern of the Skies". I remember playing this campaign around 2012 which is the staredit version. If you download the scmdraft, you will see the differences between the actual one and the messed up version.
Summary:
"So basically, the first mission entails a Terran organization told from the semi third-person perspective of Nathan Taylor, who leads a small platoon of Terrans around the galaxy to help human interests. The Dominion doesn't like him or his faction because they don't give two shits about politics or any sort of honour. They go in, they do their job, and the go out, assuming all goes to plan. Taylor also made a powerful ally while serving as a field technician for his faction before being promoted to Sergeant. He inadvertently saved Dark Psion Nariod Mak'shima's life during a Zerg attack on a Protoss colony. Nariod returned from his exile by the Conclave Protoss to help Taylor when he learned that the Terrans planned on taking on the Dominion in a battle at the desert world of Desmond. War has scarred the land and destroyed many cities on Desmond. The mission opens with Taylor landing at an allied military base (which is heavily damaged) and talks to Nariod, who lands a minute or two after Taylor. After their discussion, the two leaders take control of the base, with the left side given to Nariod and the right to Taylor. The goal is to destroy the Red Terrans to the North of your start location, but there are some surprises along the way."-Pronogo
I know I couldn't find the link due to some errors from Nibbits. But I will reupload on Staredit.
