Call in. A single player mod which plays out at the same time as Gordon and Alyx flees the citadel in Ep1. You take the role of a rebel soldier on a mission to retrieve information regarding the super portal to aid in the building of Dr. Magnussons rocket.
Puzzle! :D
Looks like some creative design you got going.
Maybe if i throw a rock at the controll panel and stick the blue cabel into the red input the door may open up :D
haha :D