Perhaps the most overlooked aspect of improving your game in StarCraft II is scouting. Far too often, players are in the dark about what each other is doing, and then when the clash happens, people are flabbergasted and demolished by units they weren't expecting. Don't be a victim of a strategy you didn't see coming! Check out our Guide to the Art Scouting in StarCraft II.

Once the scout is in, your goal is to keep it alive as long as possible. Move to every corner of their base and get intel on everything that is happening. Is there a pylon in the corner? Make note of it and scout it in a minute if your scout dies to see if a hidden tech switch is happening. Are there two barracks with tech labs down? If so, there are a lot of Marauders in your future.