Couple of issues

[Ano2]

1) Does anyone know where to change the ability/spell prices in custom/multi-player battles in TWW2? In game 1 you could do by adjusting the cp values in unit_special_abilities, but it is no longer working in game 2.

2) I have added a new activated ability to a unit and it works perfectly in custom battle, but doesn't show up on the units in campaign. Does anyone know what directory I need to look at to solve this?

[Commissar Caligula_]

Your best bet is to probably try reverse engineering it with the Assembly Kit found in Steam - Library - Tools.
Load up TWeak then DAVE, then click Extra Tasks - Global Search. Then either search how much a spell costs, eg enter "125", or enter the name of the spell and you'll be able to work out all of the instances where a specific thing appears.

I'd recommend making the mod with the Pack File Manager though, just use the Assembly Kit to find what you need to do.

[MarcusModulus]

You can find it in unit_special_abilities in db under additional_melee_cp and additional_missile_cp. It doesn't seem to translate precisely oddly enough, but reduce or increasing either cp will increase or reduce the price of the spell in custom battles. Hope that helps!