Rhye, regarding your
idea of increasing upgrade costs or limiting upgrade capabilities, this is what I do (with old RoC 2.6 (or is it 2.3?)):
* Upgrade Cost=4 (shields are worth 4 gold, 4 gold to buy a shield, upgrade costs 4 ... they are all equal).
* Barracks are deleted (replaced with a defensive establishment -- Castle, which just gives defensive bonus). Need to change Civil Defense so barracks not required.
* Harbor: no vet naval units.
* Airport: no vet air units, but provides +50% tax.
* Palace, Forbidden Palace, Secret Police HQ, Sun Tzu's (produces Armies), Military Academy and The Pentagon all produce vet ground, sea & air units.
--
I haven't updated to the latest RoC because I mod it too much (e.g., no artillery units), and you keep updating the latest version

* Upgrade Cost=4 (shields are worth 4 gold, 4 gold to buy a shield, upgrade costs 4 ... they are all equal).
* Barracks are deleted (replaced with a defensive establishment -- Castle, which just gives defensive bonus). Need to change Civil Defense so barracks not required.
* Harbor: no vet naval units.
* Airport: no vet air units, but provides +50% tax.
* Palace, Forbidden Palace, Secret Police HQ, Sun Tzu's (produces Armies), Military Academy and The Pentagon all produce vet ground, sea & air units.
--
I haven't updated to the latest RoC because I mod it too much (e.g., no artillery units), and you keep updating the latest version
