Current Military-Industrial Complex (Autocracy tier 1 tenet):
-33%
Gold cost of purchasing/upgrading units.
+3
Science from
Defense Buildings, Citadels, Forts, and Unique Improvements.
"Defense Buildings" here include Walls, Castle, Bastion Fort, Arsenal, Military Base, Mine Field and Strategic Defense System.
Proposal:
Remove -33% unit upgrade
Gold cost.
Remove Mine Field and Strategic Defense System from the list of Defense Buildings.
Rationale:
-33%

+3


"Defense Buildings" here include Walls, Castle, Bastion Fort, Arsenal, Military Base, Mine Field and Strategic Defense System.
Proposal:
Remove -33% unit upgrade

Remove Mine Field and Strategic Defense System from the list of Defense Buildings.
Rationale:
- The full Imperialism tree already has a -35%
Gold discount on upgrading units. This one's a repeat, and stacking discounts is bad as always. This is likely the reason why some find upgrading units "too easy".
- It used to be worse with Pentagon giving another -33% discount, making all upgrade costs 1
Gold. Good thing we got rid of that...
- It used to be worse with Pentagon giving another -33% discount, making all upgrade costs 1
- Military-Industrial Complex is already a very strong tenet (giving so much
Science!) without the halving of upgrade cost (65% -> 32%).
- Mine Field and Strategic Defense System should not be considered Defense buildings. This should make it consistent with Japan UA.