[quote=Uskglass]
I'm pretty sure that when you apply a city over a terrain, it overrides the regiment points for that terrain. So for example your Capital only gives 30 regiment points, etc.
[/quote]

Yes but he then didn't count the unmodified province total. It's a bit of a mess his territory selection. He went 1 Medium city + 1 forest if you get what I mean.