What tech does the AI not use and why?

[Atraikius]

The biggest problems with the AI using troops are that it will hold the troop transport back until the rest of the fleet either eliminates the planet defenses, or is destroyed instead of charging them in with the rest of the fleet; and that so many of the modded AI's have thier strength reduced to 50 making them need several hundred troops to take a planet, and allowing 100-150 high strength troops take a good sized planet of thiers.