Please, please, please with a cherry on top, do not let a AI Titan fire its BFG at a mere scout frigate. 
With that out of way, this thread id dedicated towards ways the AI scripts can be tweaked for Rebellion.
- Void Targets: Liek above, certain ships and abilities must not be used on certain targets as it is waste and can lose the battle at the start of the game. A good example is AI Kols should fire their GRG at fresh targets to take advantage of the low shield mitagtions and not at frigates that are severely damaged.
- Favored Capitals: Since the first captial ship are free, the AI should treat theirs more carefully by reducing their threat rating so that they will retreat if they lose too many of their support frigates or become moderately damaged instead of being wrecked in a single cap vs cap fight.
- Battleships and Support Capital ships: These must not be first choices since they do not have useful fleet healing or wrecking abilities that the current Cololizers, Dreadnoughts and Carriers have. Battleships should be shifted forward as the third or fourth choice so that the AI can spend money on crew training and use them as frontline units. Support ships should shifted towards fourth and above choices.
- Less Starbases, please. They are too expensive just to plop them everywhere without adequate support.
- The AI needs an retreat script because I see the AI losing too many ships and wasting money to purchase newer ships.
- I am going to be hated for this but with the introduction of starbases, there should be an option for certain players to have the vanilla SINS retreatng fleet return since its ridiculous watching the AI send cap after cap to their deaths.
Post more later since I'm out of time ATM.