MrMister said:
Terran is my main, I suck with Zerg so I never play it, and Protoss I'm starting to get a handle on... but 90% of the time I go good ol' Terran.
My usual very early build order is...
-11 SCV's
-Supply Depot
-3 SCV's
-Barracks
-2 Supply Depots
-4 Marines
-2 Refineries
-Bunker
-Barracks
Try doing this build a few times:
-At 10 population (while 10th scv is building) build a supply depot on your ramp
-Build another scv to hit 11 pop
-When the depot finishes use that scv to make a barracks
-Continue producing scv (1 at a time, do not fill the queue)
-Build refinery (make sure your still producing scvs tho, build the refinery after you have enough resources to do both)
-When the barracks complete wait for your currently building scv to finish and upgrade your command center
-Train a marine
-Build a second supply depot to fully block your ramp
-upgrade your barracks with a tech lab
-Build second refinery
-Call down a mule and start building another scv as soon as the orbital command upgrade finishes
-Build a second barracks when you have the minerals
-Start building marauders from your barracks with the tech lab
From here you you have a fully blocked ramp, a great economy (if you kept building scv and continue to do so) and can take your strategy wherever you want, my personal favorite is to follow this part of the build up with a third barracks and a starport (just ignore the factory you build to get to the starport) with 2 tech labs and 1 reactor on the barracks along with a reactor on the starport. With that base setup you can continuously produce 2 marauders 2 marines and 2 medivacs (or vikings if your enemy is using air) from a single base.
Also for longer games (eg no serious battle has happened and 10 minutes has passed) don't be afraid of chucking up more than 1 expansion or even multiple at once, expansions are cheap in starcraft 2 and if you have the right army to hold off an enemy you can come off alright. A few tips with expansions:
-Pull some workers (usualy 6-8) from your main base and put them on your expansion, this way you can build workers efficiently at both bases AND you mine out your main base slower AND you have workers ready to repair/defend at the expansion if need be
-If you manage to get an expansion up and running (or 2) be sure to upgrade your production facilities accordingly, a 2 base Terran with full workers on each base can produce from a LOT of buildings and with 4 refineries going full time you have no excuse not to upgrade the attack/defense of whatever units you are massing. It shouldn't be unusual for you to have 5 barracks with 3 tech labs and 2 reactors producing non stop if you have an expansion.
-USE THE PLANETARY FORTRESS. Do not listen to ANYONE who dismisses this upgrade, this upgrade will help you especially at lower level play where other players might not be aware of exactly what it does. The fortress has a slow fire rate but a huge damage per hit and it also has an area of effect attack allowing it to destroy GROUPS of zerglings with a single shot, being a large terran building also means it can be repaired quickly, easily, and cheaply so make sure you grab all your workers and right click on it if its under attack.
Some general unit tips:
If you're a beginner, make marines + marauders + medivacs, you can attack move in huge groups and the only micro you need to use is pressing the 'T' button when your group is selected to use stimpacks on every marine and marauder, the medivacs will auto heal if you use the attack move command and the marauders ability is passive on their attack so you do not need to to anything if you build this army.
If you do want to branch out to more interesting things don't try and become a master of the difficult units too fast, hellions and reapers are good units in the right circumstance but they also have almost no hitpoints and rely on constant micro, clearly they are not designed for a new player.
If you make thors, which you probably should do at least once because they are hilarious, make sure you bring a BUNCH of SCV's with you into battle with autocast repair turned on. these little guys will auto repair any damaged thor if you keep them nearby and they repair them very fast, thors are a cool unit but they are also very squishy so this is one low micro way of being able to use a fun unit.
If you ever get 3 bases going at once, try switching to battle cruisers. The lowest micro highest pay off unit in the game they are quite incredible although rarely seen in higher level play, just make sure you get their attack/defense upgrades (which are cheap compared to the ships themselves) and make sure you build a bunch of starports, 2 starports will NOT produce an army if battle cruisers and will lead to your untimely death with 30000 minerals and gas. 4 Starports is a nice number and allows you to also spend some minerals and gas on other units (pure mass battle cruisers is almost impossible to get to).