This is a very hard game, but not in a good challenge sort of way, in a "the soldiers are elite but only have pistols that have 10 bullets in them and are inaccurate as hell as well as getting 1 bullet a second from an ammo cache and the zombies can withstand 31 shots to the head, making them impossible to take down" sort of way. good game concept, but i was playing on easy and i am not an inexperienced gamer of any kind, nor a whiner for posting this, it is only showing how you could improve in some areas.