Half-Life 2 SP Sublimation Map

A very cool pilotable gunship map, and it's not even a mod. This is sort of a snort in the face of the strider mod, maybe they should team up with mch.
The story: A last-second warning has just reached your outpost; You must man a Combine gunship and defend against a final push by the rebels to clear the sands near City 03. Reports indicate the rebels will be using small arms, anti-vehicle weapons,