[Mighty BOB!]

The Red Alert 3 Random Map Generator has been updated a few times since I first posted about it. You can grab the current version (090216) right here.
Keep an eye on this topic on the official forums, updates will come there first.

Some (but not all) of the things that have been fixed/changed since last time include:

Added TerrainSeed and ObjectSeed to control randomization of terrain and object placement. You can share a map by sharing the seeds and configuration text file.
Added 6 player tournament map generation.
Added CliffTest map type to test cliffs.
Added tech structures.
Changed purple colour for tech structures and gold for ore nodes in preview.
Changed default Land map type to include water areas. Just change water height back to 195, or increase LandHeightMapVals if no water is desired.
Some bug fixes for opening maps.
Map preview PNG and TGA are saved in EXE folder when opening maps.
Added IsScenarioMultiplayer option.
Fixed Tournament symmetrical maps not reflecting tech structures.
Changed map detail option to allow finer control over size of areas.
Bug fixes for opening maps and placement of objects.
Added message box to warn about possible bad placement of objects and lack of ramps for areas.
Changed TGA file to 24bpp and 512*512 fixed resolution to decrease file size.