my build here it is.
9scv - straight barrack - supply depot - 15scv - marines continually - another barrack - keep supply depot up to required - gas 1 - reactor chamber on the another barrack - mass marine - gas 2 - go/test lab - marauder - go - multi - factory - tank if you have gas/starport - banshee/medivac/viking mix - thor if you have factory/banshee and viking if you have starport/battlecruiser if you have seized enough multies.
the rest is up to you.
p.s / means or. don't do whatever's after the / sign together with what's before it unless you can balance it out well.