battle/campaign difficulty?

[avesta]

I'm new to darthmod and I'm just starting up a campaign but I'd like to know the exact effects of the different battle difficulties, also the campaign difficulties.

[aznflea]

very hard makes me earn less money, gives more money to ai and lets rebels siege your town.

very hard gives the enemy extra attack and morale as far as i know

[Bearhugger]

normal battle: no bonus to you or the AI
normal campaign: no money bonus to the AI
hard battle: AI gets +3 attack, defence and morale IIRC
hard campaign: AI gets +2000 denar per turn IIRC
very hard battle: AI gets about +5 attack, defence and morale
very hard campaign: AI gets about +5000 denar per turn and attacks you if they have common borders with you (no matter the treaty...)

[CIaagent11]

How is that donne? A script?