I've made a video for preparation. I hope it's not awful. You can find it here.
http://www.youtube.com/watch?v=3eifSWZkYFw I agree on many parts of the forum post of HereForTheBeer, who apparently is also here to explain Total Annihilation. Many of his proposed tactics are effective. I just wouldn't take construction ships with the fleet, since they perform poorly, when the fleet is on the move. Dragon's Teeth should be left out, because they have no fire-power, cost metal and build time and it might also risk the construction units. The Commander should also not be put in danger. An enemy ship won't lose aim of him. Just imagine a Warlord or Executioner shooting at him from a high range. It would quickly ruin the day.
There's also a mission guide on tauniverse.com:
http://www.tauniverse.com/forum/showthread.php?p=629238 I also comment a few sentences of it.
'1. Be careful not to go too far north, as Sea Serpents patrol there and youre not ready to handle them.'
That is correct. In fact, it is not required to engage the Serpents early on. They also don't play a large role and will get stomped, once you have a huge fleet.
'2. A three to one ratio of Tidals to Metal Makers will keep your economy going.'
That might be correct, but the ratio doesn't matter much. Just build as much as you need and build a few floating metal makers as well.
'3. Have one Construction Ship build Defenders-NS around the northern edge of your base to help ward off those Serpents.'
Indeed, defenders are pretty effective against Serpents and they are needed against the AIs air assaults.
'4. A trio of Colossi will supply all of your remaining energy needs for this mission.'
Colossi require more build time than Conquerors. Just skip them until the opponent can't harm you any more.
The recording of the solved mission has already been completed and I'll post it in the next days. It will also have a better quality.
edit: First of three parts is up. Maximum video length is currently 15 minutes for me, so I had to re-edit the clips.