I've managed to do it WITHOUT shifting odin city. It's faster too, cos I controlled the bowl right from the start.
Timing: 15:49
Method: At the start, immediately expand upwards and get the drone tech. Build a few collectors but not too many, keep the starvation level down. Right after getting drone tech, I built 2 drone commands. You want starvation level to be down so they'll build fast and load up quickly. With the drones, keep bombing the trench. This will prevent the creeper from overflowing into the bottom side of the map. Build some SAMs to protect your important areas, such as the drones and odin city. The rest, don't bother yet. Just rebuild any collectors that get destroyed.
Using this method, with just 2 drones, you can keep the creeper from reaching your side of the trench as long as starvation level doesn't go too high and you don't forget to keep bombing the trench. You'll have all the time you want to fill the bowl all the way up to the ridge with your collectors, storage, speed and reactors. Get more drones and blasters, and attack when you're ready. Cheers.
