Senior cadets, as part of three-star Skill at Arms, are introduced to the L86A1 Light Support Weapon (pictured below right) which unlike the GP, has automatic capabilities. With its longer barrel and bipod, the LSW has a greater range and muzzle velocity, and with its SUSAT (the optical sight on top of the weapon), it also allows for greater accuracy. The LSW is also used by the Infantry, and having mastered this more difficult weapon, cadets can mimic the tasks performed by regular army LSW Gunners, using it's higher rate of fire to provide fire support during section attacks. They will, however, have to spend more time cleaning it afterwards...
Whether you intend to join the armed forces or not, learning of and using the GP and LSW within army cadets is pretty good fun.

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