In this Terran build order your goal will be to get two Thors out early to defend your base, then go for an expansion. This will give you enough income to transition into Siege Tanks and Marauders toward the mid-game.

Thors are extremely good in TvT since they can defend against Banshees, which are a popular opener as well. Plus they have a ton of hit points and can be repaired. If your opponent does an early Tank push you'll be able to kill it fairly easily, or at least keep him back.

This build order will also give you enough Marines and a Hellion to do an early push to put some pressure on your opponent and kill off some of his army early on. Here's the build:

10/11 Supply Depot
12/19 Barracks
13/19 Refinery
15/19 Orbital Command
15/19 Marine
16/19 Supply Depot
16/19 Marine
18/19 Factory (right when you get 100 gas)
18/27 Marine
21/27 Marine
22/27 Refinery
23/27 Supply Depot
24/27 Marine
25/35 Hellion
27/35 Armory
28/35 Supply Depot
28/35 Tech Lab on Factory
31/43 Thor
39/43 Command Center
39/43 Supply Depot
40/51 Thor

After you get your expansion up you can add on a lot more Barracks, plus tech up to a Starport and get a Raven if your opponent is still using cloaking. Ravens are also extremely good against Marauders, their Point Defense Drone will make Marauders do 0 damage for a short time.

Start researching upgrades for infantry and vehicles, then build up a big army of Siege Tanks & Marauders to push out with. Expand when you attack and you'll have 3 bases up and running to help you build a massive army.

To learn more Starcraft 2 Terran build orders check out the main build order page.