Well, using civ3edit, I enabled 'automate' action for all units (originally enabled only for workers). Guess what - it works for all units! Yes, sometimes automated unit behaves little stupid, but mostly not. I recommend you to see automated settlers, scouts, bombers, naval units and especially privateers!
If you are too lazy to do it yourself, here is modified civ2mod.bic.
If you are too lazy to do it yourself, here is modified civ2mod.bic.
