Yeah it's shit. I played about 15 minutes of the first level on Normal difficulty. I seriously died 5 or 6 times b/c of grenades. With no warning. I'd see the indicator just as it blew up. Or there would be 3 grenades and nowhere to hide. Fuck that. I set it to easy just to finish it. They really need to ditch the respawn fountains and super linear gameplay. I know that's what CoD is, but it's starting to wear thin.
The only nice thing about the game is the presentation. The between missions movies are really slick. I think they need to ditch the "dedicated to the memory of WWII vets" talk. That shit was always disingenuous anyway, but the rock anthems and melodrama are too much. Just admit WWII is/was a cool setting for a game, and give me Wolfenstein!