Are you kidding me? First level is piss (mainly because it explains Italian Blackshirts are shit) I was runnign around all over the place. I only died onece, and that was just luck. I got over 200 kills in the whole level, and upgraded my weapons 4 times inc. fully upgrading my M1 Garand.
2nd Level on the other hand.... yes that is a bit tricky. But i can still blindfire kill tonnes of Nazi skumbags