This is a tremendously thorough answer, thank you.
Going against grain may seem counter-productive and multiple players in a slot certainly would be in, say, a fair 4 player free for all. Though in the name of farcing around or toying with the AI or developing senarios it might be wonderful to see. I do take your point about a max of 8 players of course.
I take your point about the MP colors too, interesting that they're seperate from the SP ones. And indeed, looking at the radar and what not, I can now see where the grey color is used. That Brown though, eh? Wouldn't mind a poo army of conscripts XD
Thanks Tomsons.