In my ongoing campaign rank is an issue ... No one wanted to play the CO because of the responsibility for the group. After we had one volunteer, everybody strictly wanted the chain of command. The lower ranks were not alltogether pleased with the Captains decisions, naturally. The captain was not lucky with his men. After some characters had been changed (Players are still the same, but some of the starting characters were seriously wounded, killed or just did not work.) the captain was confronted with a group of characters, who quite openly said, he was a moron and his ideas of handling problems was rubbish.
The players talked about it and came to the decision, that they will try to play T2k in a more "Shadowrun"-manner - trying to seak their goals and plans in a more democratic way, letting the captain deal with official things.
I was really surprised, because most members of my group have no military experience IRL. Well, we will see