Paintball is a sport in which players compete in teams or individually.  The goal is to eliminate opponents by tagging them with capsules containing food coloring and gelatin referred to as paintballs, propelled from a device called a paintball marker or commonly referred to as a paintball gun.  Paintball is all about friends and enemies.  Your team is the good guys and the other team is the bad guys.  The key to this distinction, though, is all dependent upon your friends remaining your friends and your enemies staying your enemies.   The game is regularly played at a sporting level with organized competition involving worldwide leagues, tournaments, professional teams, and players and is played on outdoor or indoor fields of varying sizes.  A game field is scattered with natural or artificial terrain, which players use for tactical cover.  Rules for playing paintball vary, but can include capturing of the opponent’s flag, elimination, ammunition limits, defending or attacking a particular point or area, or capturing objects of interest hidden in the playing area.  Depending on the different played games it can last from seconds to hours, or even days in scenario play.  Paintball equipment used may depend on the game type and how much money one is willing to spend for the equipment and personal reference.  But the most basic equipment includes paintball marker or paintball gun used to tag the opponents with paintballs.  The paintball gun has attached loader that keeps the marker fed with paint, and paintball barrels consist of three major parts.