So I was playing on "The World's Most Evil NS Server" simply because it has eight bots, humans and aliens. I decided to be commander, even though I'm terrible, because no one would complain.
Then I did something you could never do with players, super siege cannon. I found an area that I could easily defend with a turret factory right outside the hive and put a phase gate, armory and turret factory. I then upgraded the turret factory for siege cannons, and put them everywhere except from where the aliens were coming from.
When I finished this all I had to do was just walk in their hive. It was awesome, they'd start to react, and then this massive explosion would hit them and kill everything. The hive was out in three hits, I had about fifteen cannons.