Thanks TC01! The audience for Col mods is small so I'm glad you'll be playing it - let me know any suggestions you have after trying it out.
I bet those different names are from having <Description> and <ShortDescription> in CivilizationInfos , which allow for more natural sounding diplo dialog.
I thought it would be something like that.
It's not really a problem- it was easy to figure out which civilization "Dar al-Islam" and "New Worlds LLC" were, I just thought it odd.
Yeah, I'd agree with removing those old default mapscripts (I guess that's just done with AllowPublicMaps = 0 in 2071.ini ?). It would be cool to add some variants of your original Planets script - maybe the "sea level" and climate type options could be used to vary the size/number/type of planets.
Yes, that's how to do it.
I don't like varying the number of planets by option. There's a reason why I chose the number of planets I did- I don't really think each mapsize can handle more. They could handle less- except for the tiny map, of course. But I could see varying the sizes and types of planets.
One other idea I had for a mapscript is to have a few planets in one corner of the map separated by a wall of impassable Nebula (TERRAIN_ICE). That could be a distant Sector of space, linked to Earth by a separate wormhole (eg EUROPE_NORTH) that gets unlocked later in the game with a certain Tech or Event.

Do you think that would be possible to do?
I like this idea, and yes it would be possible.
The only problem is that Europe plots are generated after mapscript generation, and Firaxis didn't think to put in a mapscript override. That's why HCOM (and Westward Ho, which uses it) does Europe modifications in CvEventManager.py, not the mapscript.
However, now that I'm looking at how the DLL handles Europe plots, it should be possible to add a mapscript override. It would, however, be much easier to add some mapscript specific code in CvEventManager.
Also, on a completely unrelated note, are you too having issues with downloading large files from WePlayCiv? Is that why you didn't just upload it there?