Walther MPL (Maschinenpistole Lang)
Background Info: The MPL is Walther's only attempt at a suitable Sub-Machine Gun. Unfortunately it did not go over well for the company, only very few people actually ordered any. It saw very limited use and a civilian model does exist, as well as a shorter PDW type. Despite all the drawbacks the MPL did make a recent mark on history by becoming popular with the hit game Black Ops.