Good Omens
Warlord
mjs0 said:Perhaps a better approach would be a Military Great Person optionally creating a city improvement that gives all troops built there a free promotion that reduces their upgrade cost. This promotion woud either be impossible (or very hard, maybe after combat 5) to get otherwise.
That would work. Call it "Engineer" maybe, and have several levels--Engineer 1 might reduce the cost by 10%, then 20%, then 30%. By that time, such a grizzled veteran unit should be able to learn to use new weapons pretty easily.