Why are these maps not installed with CMO directly on my SSDs?
Cause in total they're big, not just in size, but in sheer number, last time I looked, and it's been awhile there was something like 400k files in my /WW/cache folders, that a hell of a long install time. I'm definitely one who very much wants to grab the file to precached them and have for offline play, been asking about since before release, but definitely understand why it's not something in the Standard Installer. ;)
Some time ago the status on getting access to the filesets we could grab for that purpose was "we're working on it.", which was a upgrade from "we hear you" so to speak.
It's painful, but when you have a spare hour pic a overlay type, and a zoom level and slow scan the world,pausing a good 10 seconds in each spot, then rinse and repeat at the next level down, and so and so forth till you've grabbed most of it all to disk cache. Tip when doing this, when you see CMO accumulate to about 2gb of ram_ while doing this over a period of time, consider restarting. First thing I do in playing scene in a geographical area I don't often hang around in at lower zoom levels, make sure I've pre-cached the area. Pretty sure I have the world at every zoom level in relief and BMNG now, the others far less so, I actually have command blocked from internet so it's easy for me to notice when I'm hitting an area I don't yet have on disk. Now that will not solve all the 'laggy' loading issues that people report, bit will at least slowly illuminate the downloading aspect from it.