[Imp]

Thats how its supposed to work pretty sure it says so in the GG, the only pref you can change is I think map size everything else is locked down.
If you want the AI to have diffrent points allocation to you adjust the file theres a thread somewhere, applies for the entire campaign.
If you want varied forces build it & play as a user campaign, better still get a freind to build your opponent & you do his.