When using tampons as field expediencies, remember that the string goes on the outside. This way it is easier to get them out when it is time to suture up the wound.
Always remember that if there is an entrance wound, there may well be an exit wound.
Always check for possible lung damage if the bullet wound is in the chest.
Yes, You ARE allowed to hit Marines over their Head with your "purse" when they get all funky about the fact that you are hauling around tampons. Then try to explain to them in really small and easy to manage words, "your friend the Sucking Chest Wound"...