Terran v Protoss: 1/1/1 Sky Terran TvP

This is a fairly unusual build which is derived from the 1/1/1 (barracks/factory/starport) build which transitions into full 'sky terran' but also has the capacity to transition into a marine, marauder and medivac style build with supportive banshees.

10 – Supply depot
12 – Refinery
13 – Barracks
16 – Orbital command upgrade
16 – Factory
16 – Marine
17 – Supply depot (at ramp)
19 – Marine

Stop Marine production here

20 – Bunker
20 – Starport
20 – Hellion
22 – Refinery
24 – Tech lab on barracks, swap to starport
25 – Banshee
27 – Cloak research
27 – Supply depot

This is the typical 1/1/1 cloaked banshee build you can transition in two ways from here.

Sky Terran build

From here you want to poke into your opponent's base with the banshees you have to try to do some economic damage but it is key you keep as many banshees you can alive. From here you want to follow this general guideline while still continuing production of banshees.

– Starport
– Banshee
– Raven
– Viking
– Command center
– Engineering bay 

From here you want to float your command center to your natural and change in into a planetary fortress due to your lack of ground support, you also may want to build a bunker and fill it with whatever marines you have left over. Your unit compositions should consist of banshees, ravens and some vikings. The banshees are for the damage and the ravens provide support through auto-turrets and point defense drones against stalkers. Many protoss will not know how to defend agaisnt this style so continue harassing and defending using planetary fortresses for new expansions and about 2 starports per mining base as well as armories for upgrades.

Conventional 1/1/1 transition

 If you do not want to continue into the full sky terran build you should add bunkers and get stim and concussive shells as well as a reactor on your starport for medivacs as well as expanding to your natural. You should have the conventional MMM composition as well as some banshees/ravens for support or harassing.