You mean "repress the natives until the occupation forces arrive"?
Marines can't and shouldn't go toe-to-toe with first-class army units on their own, the fact that American Marines did well against outnumbered Japanese conscripts armed with bolt-action rifles and later against various starving peasants around the globe doesn't change this.
Russian fanbois have a hard time remembering that the Japanese had years to prepare fortifications, always fought to the death, and that virtually all of our marines had been civilians until the war started. We won that war handily by the way. I gotta ask how many Russians it took to conquer Finland, a country with 10x less resources and manpower than Japan, and who shared a massive land border with the USSR. Oh wait.... they failed twice. You Russians really do try so hard to be 2nd best though. Its quite amusing.