What I'm wondering is: if anyone can suggest a strategy to keep the game from becoming about building an overwhelming Army, but instead about smaller (and perhaps simultaneous) engagements?
After watching some VODs online I've noticed that army sizes increase as the game progresses. Which makes sense, because as the economy of each player increases they are able to produce more and more units, and build more and more structures (or have built more structures).
I think I see smaller Armies in the Pro games (anybody agree with that?). (Yes, eventually one force gains enough of a lead to make the large, overwhelming army — and it usually is near the end of the game).
Best Answer
Fight early, fight often.
Focus on map awareness. Building big armies requires big resources that have to come from somewhere. Harass your opponent as he tries to expand, forcing the smaller skirmishes. Limiting resources is the best way to force combat with less troops.