Actually, this happens to me in CoD games. If the gun has useless features, it really gets under my skin. The unusable bi-pod on the FAMAS and the fact that it's sights hover slightly disconnected to the gun in blackops makes it so I can't use the gun without getting annoyed. The G11's extra magazines on the sides being just part of the model and unable to be used also annoys me greatly.
Thus, I stick with something simple like the MPL.
Thus, I stick with something simple like the MPL.