Yakk wrote:What I don't like about the campaign is the feeling that if I "dare" move out, I'm screwing myself. The enemy will have a tonne of forces that it only uses if you move out...
On some maps, this makes sense. On others, far less so. But it is almost universally true, outside of the maps where you don't have a base.
To add to what ReassuringCurve said, I'm pretty sure there are no missions that punish you for moving out. The only possible exceptions I can think of are missions where your objective is to explicitly defend (achievements notwithstanding). But that's only punishing in the "leaving your heavily defended position is risky" way.
It's pretty obvious that blizzard designed a lot of the missions with the idea that a 200/200 A-Move army can decimate anything, so they added timers or other events to force you to play outside of your comfort zone, not the other way around.
Game_boy wrote:Blizz do have an idea of how MP is meant to be played but they never communicate this explicitly in material new players see.
They do have the challenges to do that actually. It's hard to gauge how effective they can be though, given it can take hours to teach someone to play starcraft multiplayer, and they don't really have that kind of time unless someone is already making the effort to learn.