On the contrary, the game is realistic in this aspect. Czechia was basically never able to close the borders so tightly you would prevent "all imports". What "closed borders" meant in practice were tens of thousands people crossing the border every day. With prevalence in the rest of the Europe often much higher than 1 in 10k, this means you always have a stream of imports.
Note that some of the borders look like this:
https://polar.cz/data/gallery/modules/polar/news/articles/vi...
you have a town on both sides, and in normal times, due to Schengen, people are used to work and shop cross-border. ?In such contexts you can prevent most of cross-border travel, but not all of it.
On the contrary, the game is realistic in this aspect. Czechia was basically never able to close the borders so tightly you would prevent "all imports". What "closed borders" meant in practice were tens of thousands people crossing the border every day. With prevalence in the rest of the Europe often much higher than 1 in 10k, this means you always have a stream of imports.
Note that some of the borders look like this: https://polar.cz/data/gallery/modules/polar/news/articles/vi... you have a town on both sides, and in normal times, due to Schengen, people are used to work and shop cross-border. ?In such contexts you can prevent most of cross-border travel, but not all of it.