Map and DLL Naming System
From OPU Wiki
There is a system Dynamix used to name their .map and .dll files.
Here you will find infomation on it and advise on how to name your custom .map and .dll files.
DLL file prefixes:
a - Demo (plays when you sit idle on the main menu)
c - Colony game
e - Eden campaign mission (must be followed by two digits)
p - Plymouth campaign mission (must be followed by two digits)
ml - Multiplayer, Last one standing
mf - Multiplayer, Space race
mu - Multiplayer, Land rush
mr - Multiplayer, Resource race
mm - Multiplayer, Midas
Once a .map and or .dll file name is set it should never be changed.
