Complex sentence: The M14 rifle remains in limited front line service within all branches of the U.S. military, and is also used as a ceremonial weapon by honor guards, color guards, drill teams, ceremonial guards, and the like.
Split into simpler sentences: The M14 rifle remains in limited front line service within all branches of the U.S. military. It is also used as a ceremonial weapon by honor guards, color guards, drill teams, ceremonial guards, and the like.