Reinforcements over 10

I KNOW I had some cities at 30 reinforcements and the number was in white. I thought 'cool, i'll tweak the giant cities later on'. Now I can't get any city to have reinforcements over 10 and forget what the heck I did.

Any idea how to do it? If there is a city/metropolitan area with 30 million people in it, rather give that city 20 reinforcements than cover the area with smaller cities.

RP actually. And some tiny cities with no income/population that are naval bases and can make large numbers of torpedo/depth charge, or air force bases that can make large numbers of bombs.

And Hong Kong, New York City, others - If a city area has 38,000,000 people and the same reinforcements as a city with 5,000,000 - I'm not going to break it into 4 cities and cover the map in that area with cities. I just want one metropolitan area with a higher reinforcement rate.

I don't do king of the hill or the other new sp farming maps, this is just for country balance for a RP/UN map.

This is NOT for sp farming. I'm happy to let you see the map or add you as collaborator if you feel that way, so you can make sure.

But I want some 'cities' (actually naval bases or air bases or whatever) to have almost no population/income yet have a high reinforcement for ammunition (torpedoes for subs, bombs for bombers).

No support. lol just reduce units, having a lot of units makes a map bad xD And yeah it's abuseable too.
Just make more cities next to each other..like UN ;_;