Edit the Max2.ini file and use the following settings:
This should give you access to all campaigns.
Again, here are cheats that work only with the
standalone, single player missions:
This is toggle. Turn it on to see all the units on the
map, even the ones outside of your normal Scan range.
You still cannot target units that are outside the Scan
range of one of your units.
This is also a toggle. Turn it on to see the locations of
all the material and gold resources.
This will fill all of your units and buildings with the
maximum amount of material.
Select a unit and use this cheat code. That unit will be
upgraded to the highest possible level.