First of all keep getting scv's at start, with 8 scv build a supply depot, with the 9th scv a refinery and with the 10 to mine. When the scv is done making the supply depot send it to make a barracks while make 3 scv's for refinary and some more for minerals, then start saving money and making supply depots, as soon as the barracks is done make a factory, followed by another as it is building, when you are making the supply depot get 4 marines and make a bunker. When the 1st factory is done have the scv do another supply depot and the factory a machine shop, when that is done get the spider mine upgrade, may i add that when the machine shop is around 40% done the other factory shall be done so start pumping vultures, and when u get the mine upgrade start laying mines infront of ur base, aswell as get the speed upgrade, when u have around 10 maybe 12 vultures with both upgrades go to ur enemy if he has built some defences just fly by them and go to the workers and start shooting them. Also while u are doing this you should have massed up in gas so then start making tanks,goliaths, and some vultures to lay mines around your base.

CreepColony's Opinion: If your opponent has zerglings, zealots, or infantry in their base, you vultures should kill them pretty easily.