SC1 was a great RTS, but MP did suffer from massive outbreaks of turtle syndrome. SC2 addresses this issue by nixing defense walls, the large shield radius, and the larger defensive AA and AT turrets. Factory Upgrades have gone by the way side in favor of a classic RTS tech tree. All of these changes make for a faster, much more offense oriented game. The SC2 SP demo is available for DL over at steam.

Some Pics…

And a video…