First get 10 workers all on mienrals then if u get about 200- 250 minerals make a supply depot and a barrack at the same time after the supply depot is finished make another supply depot at the entrance to the base but dont cover fully and after barrack is finished make a bunker behind the supply depot at the entrance Make 5 marines or as much as you can and have the building scvs work on minerals while making more scvs once u have enough money make an academy where it wont block the ways of siege tanks and stuff make sure to leave alot of space between buildings to manuever tanks after you have about 25-20 scvs make another barrack and then a factory while doing this ahave a spare scv make another bunker near the command center if the person your versing is smart enough to attack the workers once u have armory make 5 siege tanks 3 goliaths and 2 vultures while doing this u should have 3 scv on gas and about 20 on the minerals make about 15 marines 5 firebats and 5 medics and charge the enemy base make sure to put siege tanks on siege mode with goliaths to guard em before u leave though have vultures plant spider mines in you base entrance so u wouldnt get attacked while you areaway if enemy escapes and builds another base get scince vessel and marines and goliaths to attack the base if alot of scvs are working make sure to use irradiate with science vessel on the scv to confuse them and kill them preferably use splash damage to kill them all with a siege tank also make sure to gurad the way out of their base so they wont slip past u again