15 orbital command
~1-2 marine to fend off fast lings
17 engineering bay/reactor on first rax
18 rax #2
20 rax #3
21 upgrade weapon damage in engineering bay
25 Tech lab on rax #2
30 reactor on rax #3
so by 7:30 +1 damage finishes, you have a control of about 25-30 units and you attack move teh zerg base! by 8 minute you'll have the marine +10 hp buff researched as well and about 35-40 units. You make marauders from the tech lab barrack, and always double marines from the reactors ones.
Always have a supply depot queued as this build is supply intensive. Always use the mule when you get 50 mana. If you macro well, you'll have an endless stream of marine/marauder coming to support your push.
This beat mass roaches/mass lings/hydras/fast expand and whatever teh zergs have thrown at it so far. The only threat to this build is banelings/lings. If you play smart, you should be able to fend that off pretty easily as well.
You have to stay inside your walls until you get one or both marines upgrade done.
I'll add replays when I wake up later, not sure where I can host them.
heres a replay against #1 in platinum division 6 edit: took out the replay as it seems theres a virus on that upload site =( sorry guys