The trailer doesn't show any gameplay footage (but past ones have). It just shows a really well-orchestrated cinematic sequence. It looks very Unreal or Gears of War. Unfortunately, all the dialogue is in Korean, so we have no idea whether or not it reveals any interesting story elements.
Note that a giant worm-like monster makes an appearance at the end. That might imply that players won't just be fighting each other. Huxley recently found a Western publisher, so we're looking forward to seeing for ourselves.