(One marine only*)
(Reactor on Barracks, @ 100% swap w/ Factory, then Techlab on Barracks)
(OC on 2nd CC)
(@ 100%, Reactors on both)
(build on factory reactor, )
Safe and Greedy. Be weary of Roaches. With the Widow Mines, have one mine in front of the bunker that is guarding your natural, and another at the bottom of your ramp. You should have about 4-6 widow mines and a full bunker. The build favors more to Heavy bio, but you could also transition easily into anything with the economy. there is also a tutorial created by Shockzguide. Here is the link.