Command & Conquer Red Alert: Origins is a StarCraft 2 semi-total conversion custom map made to look and play as much like the original Red Alert game from Westwood Studios as StarCraft 2 allows.
Spent roughly around three hours today writing the system for the Service Depot. It functions pretty darn accurate to the original if I can say so myself.
I also spent half an hour trying to break or bug the system. I couldn't. :)