Without smart tactics or voice chat, the overwhelming volume of adversaries - that can come all angles - will take your group for their keens. If the enemy doesn't see sneaking through to him from behind or his side, then they can not cry out to alert his comrades nor is he going to possess a chance to fire his weapon. Of course there is certainly multiplayer and co-op modes to chew on, which provides the gamer something easier to look forward too once they complete the game.