12 rax.
15 orbital,
15 marine.
16 Command center
17 supply depot
bunker
2x barracks
dubbel gas in main
tech lab -> stim
factory, engineering bay-
+1 attack och +1 armor efter attack
starport, reactor
+1/2 gas at natural
Push when 2 medivacs out
+1 tech lab, +1 reactor on naked raxxes..
Start 4rd CC
+3 barracks
engineering bay+armory
(extra starport if opponent goes colossi
ghost academy if early templar/archons)
rest is up to you