being a perfectionist/completionist, i'm somewhat dedicated to replicate the 1jan1999 earth situation on polylines and countries, and to include much more cities.
i've already gathered some of others' work on the subject. i've checked, fixed and severely expanded Hobbes' Terrain Pack v4.1 mod [country names, coords, and the like. not terrains themselves].
i've found some polylines for country borders, i can't remember where it is from and there was no copyright information in the file. i plan to correct it a little and expand it heavily.
the biggest problem is that the funding and graphs screens don't have enough space for long country names. even multi line split would work, as far as i can tell. just think a bit about "commonwealth of independent nations" (shown as "russia" in vanilla). or "democratic republic of the congo". display routines of country/city names on the globe should also support the {NEWLINE} thingy. i think it is already working, just gets cropped both horizontally and vertically for some reason.
those countries that likely had too low contribution could be omitted from the funding and graphs sections, but not from the globe itself. the fundingCap property could be used as a semaphore if the given country should be included in the funding screen or not. certainly a country with a fundingCap of zero does not have a reason to be included there.
another great idea is the zoom parameter for cities. it is already mentioned in the ruleset reference, but i checked the code and it seems to be still hard-coded as:
polylines show at zoom levels 1+
country names at zoom levels 2+
city names at zoom levels 3+
https://github.com/SupSuper/OpenXcom/blob/master/src/Geoscape/Globe.cppGlobe::drawDetail()
beginning at line 1242
i also need suggestions on a number of topics.
for example, "usa" is shown as a single country, but the european union is not. i understand that the connection is a bit different between the states of usa from the connection between eu members, so eu members can decide about their level of funding separately while usa states are too 'united' for that. but what about african countries? their contribution may be a bit low when measuring them one by one, but could easily add up to something useful if treated as a whole, or as several communities (possibly the communities could be used for regions, too). the "organisation of african unity" still existed in 1999 (replaced by the african union in 2001, but it is still the future when the game begins). i've already made a list of african countries for the globe, and some for funding, but it will not be possible to fully develop until the zoom function gets activated.
what about north korea? i would say that north korea is not contributing to the xcom project, but south korea does. but i need the opinions of others, too, so please.