I've been playing the beta and I'd just like to write down my thoughts on some of the units that I've been using. I don't care for posting my blog on forums but I'll try this once. If someone's already gone through with this feel free to just lock it.

I have little to no experience with a lot of RTS games. At least playing competitively, recently though it's all about online gaming for me and I'd just like to share some of my views on the units I've been using. I try to play as all races but I've seen that I win more games playing as the Terrans. So far my strategy has changed from an armada of siege tanks in SC1 to a harassing/stealthy airborne attack force in SC2.
 

• The Marines are my general unit. I use them to kill off most of the enemy's force or at least to lure the enemy away from my reapers or vikings.
• The Marauders support my marines by blowing away the bigger units and I think these guys slow the enemy down after an upgrade. Will check but I wouldn't recommend playing a game without these guys.
• Reapers are essential to my game since I like to focus on ripping the opponents economy to shreds without a huge battle. Some use Hellions, I think Reapers are far more efficient.
• I haven't been able to use Ghosts as much as I would like... here's hoping that will change so i can start dropping nukes and play my stealth game.
• Vikings are one of my favorites especially against Protoss players (overlord hunting is hilarious with these guys). I love their hit and run capabilities. I get a lot of flak for dropping in and then flying out after destroying an expansion.
• Medivacs are dropships and I use them a lot to fly my marines and marauders around. They also heal your units which is a plus but they don't heal as quickly as you would like. Wish they had an ability to lay down a healing AOE ability to help with standoffs.
• Ravens are science vessels on crack. I love these things since they're also amazing for harassing. Auto turrets and seeker missiles make these guys a pain in the ass for the opponent. They require a lot of micro but I recommend you practice with these guys.

I've been playing the beta and I'd just like to write down my thoughts on some of the units that I've been using. I don't care for posting my blog on forums but I'll try this once. If someone's already gone through with this feel free to just lock it.

I have little to no experience with a lot of RTS games. At least playing competitively, recently though it's all about online gaming for me and I'd just like to share some of my views on the units I've been using. I try to play as all races but I've seen that I win more games playing as the Terrans. So far my strategy has changed from an armada of siege tanks in SC1 to a harassing/stealthy airborne attack force in SC2.
 

• The Marines are my general unit. I use them to kill off most of the enemy's force or at least to lure the enemy away from my reapers or vikings.
• The Marauders support my marines by blowing away the bigger units and I think these guys slow the enemy down after an upgrade. Will check but I wouldn't recommend playing a game without these guys.
• Reapers are essential to my game since I like to focus on ripping the opponents economy to shreds without a huge battle. Some use Hellions, I think Reapers are far more efficient.
• I haven't been able to use Ghosts as much as I would like... here's hoping that will change so i can start dropping nukes and play my stealth game.
• Vikings are one of my favorites especially against Protoss players (overlord hunting is hilarious with these guys). I love their hit and run capabilities. I get a lot of flak for dropping in and then flying out after destroying an expansion.
• Medivacs are dropships and I use them a lot to fly my marines and marauders around. They also heal your units which is a plus but they don't heal as quickly as you would like. Wish they had an ability to lay down a healing AOE ability to help with standoffs.
• Ravens are science vessels on crack. I love these things since they're also amazing for harassing. Auto turrets and seeker missiles make these guys a pain in the ass for the opponent. They require a lot of micro but I recommend you practice with these guys.

So, how was your life before the Beta key?

Hi! Good thing you focused on Terrans, since I main Terran and barely touch the other units...
 
You are generally right in your analysis. Hopefully you see some flaws in the Terran design as well as some imbalances already inherent in the beginning stages. Air units in this game server a two-fold purpose that they didn't in Starcraft I, mobile detection is much more valued and alot of air units now have at least one ability which means more micro and more utility for them, along with the fact that most ground units cannot attack air.
 
Unfortunately, the Marauders, Marines and Medivac build that most Terrans take seem to go against that, but with enough marines or a good few vikings, you can probably win most games. Marauders are the backbone of your army, don't let anyone tell you otherwise, however, getting a rax with a reactor can really help bolster that marine count when you're trying to fend off some air harrass. Reapers are good, but do take note that they are quite an investment and are really only viable as economy harass or an expensive scout. If you manage to use reapers in a mid-late game battle to good effect, please tell me! I find usually 1 or 2 reapers without the movement speed boost is generally good enough and can be used against Zerg/Protoss (Not so much Terrans) with good enough results. Ravens and Ghosts seem to be the utility units in the Terran arsenal, with 3 or 4 abilities each. The Point Defense Drone and the EMP are two of the best abilities a Terran possess and can absolutely crush a Protoss player as well a mass Roach/Hydra push. Tell me how your matches go! 
 
Oh, and grats on the invite :)

" @Wunder_:  I now play a balance of Protoss and Terran. I'm still working on my Terran strategy since the Zerg have been giving me problems. I usually face mass roaches, mass hydras, or a combination of the two. Any suggestions?  I'm still working on Protoss strategies. Suggestions would be nice. "

" @AestheticSynthesis said:

" @Wunder_:  I now play a balance of Protoss and Terran. I'm still working on my Terran strategy since the Zerg have been giving me problems. I usually face mass roaches, mass hydras, or a combination of the two. Any suggestions?  I'm still working on Protoss strategies. Suggestions would be nice. "

If they're massing roaches get a few banshees out and because roaches can't shoot air  they'll have to completely change their tactics or lose, because. As for hydras stimmed marines and marauders with medivac support will tear them a new one, add in a few siege tanks behind and you'll be golden.  Don't play Protoss (mostly Zerg/Terran) so can't comment on them. "

Yeah, in a 1v1, you're focused on your opponent alot, but you have to remember to expand. I've taken to a strategy early game where if I find myself outstretching my mineral-vespene gas gap too much, I'll build a command center and go. The thing about Terrans is that your expansions can be built safely in your base and then lifted off. Even if you're harvesting Vespene at 3 harvesters/2 gas at 4 expansions, you're going to get way more minerals even without a fully saturated mineral line. Thus, with another expac mining full gas and a bit of minerals (Thanks to having alot of energy for mules and tons of spare scans) you should be completely fine to mass a huge M&M&M army or even tech to Thors or something. Keep in mind there are a few mineral sinks you can invest in such as an Engineering Bay and a few Bunkers/Missle Turrets. These are especially helpful when the enemy comes knocking with a full air assault, although you might think you're 'wasting' your minerals, there really isn't that much you can do if you have 4000 minerals/100 gas (Like I was in one situation). With the new 'buff' to Hellions in Patch 11, you can also pump a few to harrass your opponent and get that extra map control when you need it.