The cube 2 map editor is nice, has a little rough edges and incongruency here and there, but overall more expedient than other editors.
Guy told me to use /remip, and so I did, but it still isn't that optimized, just not ridiculously high poly anymore.
Thing is, I can't get it to optimize cubes into 6 side cubes. If a cube touches another cube, it won't optimize into 6 sides. There seems to be no ryhm or reason behind this, it seems like the algorithm wants to connect all the dots, but connecting the dots is not present everywhere on the maps, there are places with unconnected faces and nonlinked vertices. Also, the algorithm seems to miss obvious chances for optimization, so I am unable to export game-ready wavefront objs with this utitlity. I am going to try Red Eclipse editor and see if it is more optimized.