Explanation for rule #5

Explanation: If someone does remove their mask on the field, it is imperative that all players do everything they can to make sure he is not fired upon before he gets his mask put back on. Upon realizing a player is 'unmasked', players are urged to yell 'Cease Fire' or 'Man Down', lay their marker on the ground, and take 2 steps back until a referee corrects the problem and restarts the game.