I have just completed a QB map where the was no enemy force at all.
I was the US and had set the opposition to be random RED forces. The map was open terrain which had 2 objectives to be captured.
On completion of the time having never fired a shot in anger, I checked the after action report screen and yes there was a complete line of zero's for the enemy stats.... No persons alive, No persons wounded, No persons killed. In short NO ENEMY
Is quick battle completely worthless at the present time................