Without smart tactics or voice chat, the overwhelming amount of adversaries - which come from all angles - will bring your group to their keens. If the enemy doesn't see sneaking on him from behind or his side, then he is able to not cry over to alert his comrades nor is he going to have a chance to fire his weapon. One final gripe - the final third of the action is 100% carbon copied through the previous game - I'll avoid the spoilers, but if you've played Uncharted 2, you'll know what I mean if you notice it.