EPT(www.wikipedia.com)
Tactics and strategies are two very essential tools often used in every aspect of our lives, from military tactics to chess strategy tactics. From the definition above, we can clearly define strategies which is a longer term oriented goal. Tactics on the other hand, are used to justify and achieve a strategy goal. Let’s look from the Starcraft 2 point of view. We often implement both of these factors into your games with a common goal of winning the game. We can often define a strategy easily from the perspective of a specific build. Clear cut strategies involving certain specific builds such as 3 Gateway expansion, 1 Barracks expansion, 15 Hatch, 2 Gate Robo, Terrans 1-1-1 Destiny Cloud Fist build and the list goes on can often be told and analyze easily.We may also define a strategy such as aiming for a 3 bases Protoss max army strategy etc. On the other hand, tactics are used to achieve this specific strategy.
However, tactics are often considered to be the next level in the game of Starcraft 2. Everyone can perform a specific strategy, but only true Grandmasters of Starcraft 2 will fully utilized and understand the importance of Tactical knowledge. The main objective of tactics is forcing your opponent into a specific path decision. Thus, greatly reduces his options and limiting his play. Starcraft 2 is a real time strategy based game involving multiple different units and tech paths, each with their own strengths and weaknesses. We can generally group unit B is a direct counter to unit A, C to B, D to C.
Read more on http://sc2tips.blogspot.com/2011/03/tactical-guide-in-starcraft-2.html
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