Starcraft 2 – Wings of Liberty: Disable Tech Requirements Cheat
In Starcraft 2: Wings of Liberty for the PC, there is a cheat to disable tech requirements for building. During the game hit the Enter key to bring up the message prompt and type in sosayweall to enable the cheat.
Note that once cheats are turned on, you will not get achievements for that game.
Check out my other article for more Starcraft 2: Wings of Liberty Cheats.