One possible story:
It is the year 2029. The combine have all but conqured humanity... But there is hope... In the secluded australian outback, there lies an outpost where talented individuals search the universe for the telltale signs of the Gman, looking for the one free man... This organisation is called TWHL. The members of TWHL use a sophisticated computer program, codenamed "Teh Hammre" to model various dimentions and planets in 3D. When they find where doctor Freeman is kept, they will convince the Gman to let him go. Each member of TWHL has their own room where they can live and work in comfort, each utilizing a different amount of technology, but all using "Teh Hammre" in their computers in the hope that they can save both Humanity, and Vortigaunt kind. You are a member of TWHL, codenamed "Captian Terror" And you have found a new Gman location. You have to show the founder, Atom, the new location, but he's busy at the other end of the base. You begin a process called "Compiling" that will show the target location in higher clarity, and It should be finished by the time you reach Atom. Either way, you need to show him the new data. All your lives depend on it.
Needs a bit of refinement, But it may be able to work.