First level is good but gets very tedious in level 2 (north africa). You die really quickly if you are out of cover, and the enemies are very far away, with only a pixel or two visible, add to that your guns are very imprecise, so it's like trying to get a hammer through a needle. To make it worse, levels are designed so enemies spawn on top of you or behind you, which can often kill you before you even know anything.