theres no way you can sustain enough production without building more stuff, and its proving very difficult to do this strategy without an expansion There is no way that the guy who wrote all the bullets played on brutal. Voids have decent range and there is a lot of terrain that can choke up your units on this map.
You can do either 1 or both I needed both as my gols could hit the void rays hard while my ball focused on everything else. For the suggest army composition for brutal, is that either bioball or goliath turrets, or both?