CliftonBazaar
Prince
In real life I work as an earthmover, driving 50 tonne machinery. My current job has me working across from where Submarines are made in Australia.
The shed is HUGE because it not only has to house the actual submarine as it is being made but also to keep out prying eyes (they are tough on security). This place employs thousands of people and took 6 years to build the infrastructure needed before they even started building a sub.
This got me thinking (my job can get boring so I do think sometimes
), why can I build any military unit at any time in any city?
My suggestion is to have a city build a improvement that can constantly build units, i.e a barracks builds military units (must choose a particular unit though), a submarine base builds subs, an airport builds planes etc
The original improvements would have a huge cost to set up, but once they were set up then units would be made on a regular basis.
How fast these units are built is dependant on what you set your military slider (yes I know it would add a fourth slider, just after BtS added a third slider for spying).
Just throwing some thoughts around
The shed is HUGE because it not only has to house the actual submarine as it is being made but also to keep out prying eyes (they are tough on security). This place employs thousands of people and took 6 years to build the infrastructure needed before they even started building a sub.
This got me thinking (my job can get boring so I do think sometimes

My suggestion is to have a city build a improvement that can constantly build units, i.e a barracks builds military units (must choose a particular unit though), a submarine base builds subs, an airport builds planes etc
The original improvements would have a huge cost to set up, but once they were set up then units would be made on a regular basis.
How fast these units are built is dependant on what you set your military slider (yes I know it would add a fourth slider, just after BtS added a third slider for spying).
Just throwing some thoughts around
