Missing Information

A mod by Gabe's Love Tub that was meant to be on steam but Valve said no due to its leak based nature.

A port to sdk 2013 by a different dev (Mazdo): https://www.moddb.com/mods/missing-information-source-2013-port

you will need: https://www.moddb.com/mods/missing-information/downloads/missing-information-16-full