computers always attack together.... you get the first attack with zealots, marines, and lings, which anyone can survive. then there's the second attack which is the one i die on if i die. thats where they bring dark templars, tanks, and lurkers and i can't get a good enough defense. there' no way i can do it if i'm toss because cannons don't cut it. you would need a huge standing army with zerg, the best strat in my opinion is about 3 rows of sunkens, with a row of spores infront of that, and then a thick row of lurkers infront of that but 3 or 4 terran could easily demolish that defense and then with terran its kind of easy. just have a front wall of supply depots, followed by a bunch of tanks and bunkers.