hitting the destructible rocks as zerg is extremely helpful, choke points are very dangerous for large amounts of zerg to walk through
lots of new maps these days have rocks in prime positions
hitting the destructible rocks as zerg is extremely helpful, choke points are very dangerous for large amounts of zerg to walk through
lots of new maps these days have rocks in prime positions
tiny mineral lines on maps like world of sleepers and zen are also ideas for zerg to work with