I have only seen MP demo. From the videos I thought that it was possible they had one mode that allowed you to cycle through all the weapons, or that they did it in the videos so you could see all of them but it would not really work that way in the game.

Apparently you CAN cycle through all the weapons in the game. So in that case I would look at it as though I represented a whole detail of 4 or 5 guys each with a different weapon.

But I suspect I will play the game, once I get it, without switching weapons. Seems way to fakey to go from M-1, to Thompson, to bazooka, to BAR etc.