first your defense....
(note: make supply depots as much as u can while usin this strategy)
1. send the scvs that u start out with to mine and build one more scv with the 50 min that u start out with.
2. keep on makin scvs and sendin them to mine until u need a supply depot.
3. with the last scv that u can build, make a barrack anywhere u want.
4. get another scv that was mining minerals to make a supply depot.
5. usually the barrack and supply depot will finish almost at the same time. when both buildins are done make one of them build another supply depot.
6. with the barracks make 5 marines and keep trainin them until u have 16 (4 bunkers). you can build 1 more barrack if u ahve enough minerals
7. with the scv that built the barrack, make 4 bunkers as fast as u can.
8. load the bunkers with the marines.
9. that should keep u safe for a while so lay back on the d for right now.
10. quickly build 3 scvs and build refineries with them.
11. build 3 more to mine (2 in each refinery)
12. if you are going slow on gas build yet 3 more to mine.
13. wait until u have 100 gas which won't take that long and build a factory.
14. while buildin the factory build as many scvs as u can to mine minerals.
15. after the factory is done build the addon for it and upgrade for siege mode. build tanks while doin that. maybe about 4 or 5 for defense.
16. put the tanks in siege mode by your bunkers for d.
17. right after u put the tanks at the entrance, build two armories.
18. upgrade as much as u can for the goliaths
19. while it is upgrading for the 1st level weapons and armor, make as many factories as u can (i make about 9-12)
20. set the rally points for the goliaths to go to when they are finished.
21. keep on upgrading until lvl 3. build whatever buildings u need to upgrade such as: Science Facility
22. after about 5 groups or 12 goliaths or more.......
23. ATTACK!!!!!!!! notes....
-works best on comps
-may seem like it would take awhile but actually is pretty fast if there is no lag.
-remember to build supply depots thru the strategy
-get so many scv's that on the map the mineral area looks like a green block.