Oh well that clears it up ![Wink ;)](http://www.playmofriends.com/forum/Smileys/classic/wink.gif)
Those tiny red and grey things belong in the trunk at the back of the troop carrier. When the troop carrier is followed by a enemy car, you dump those red and grey things on the road. These will punture the tyres of the enemy car.
Do you never watch James Bond?