A tutorial would be excellent, Bil. I haven't used Excel in about 10 years.
I did download the Command Friction Rules pdf, and I'm going to try to integrate some rules into my current PBEM with John Kettler.
As I said before, I had my own house rules, but these are better. Especially with regards to the rules for communications, and defining tasks.
My previous house rules were to implement a command delay to simulate the passage of communications, and to only allow units to 'react' (i.e. Area Fire, etc.) on positions to which they have a contact icon. I had looser rules in regards to voice communication, but I also included the use of runners to pass a voice command to multiple units quickly.
Even simple rules like this provided a lot of friction, especially in Shock Force playing as combatants. The way I figured it, combatants would possess hand held walkie talkies, and cell phones. It was certainly interesting trying to simulate the delay and vagueness involved when one combatant group calls another one on a cell phone to report an enemy contact.
"Hello?"
"Stop shooting you idiot, they're in the RED building."
"I thought you said the RIGHT building!"
"No it's the RED one!"
"Alright, we'll shoot at that one instead."