My enjoyment of the game was initially hampered due to my foolishly selecting a high difficulty level. Missions became exercises in repetitive frustration as I died over and over at each choke point. Playing in such a frustrating fashion reveals several of the flaws that have existed in every Call of Duty game since the beginning: The games give you the illusion that you are fighting huge battles along with many of your colleagues but in reality the only person the enemy cares about is you. Every sharpshooter and machine gunner on the opposing side will aim directly at you a split second after you pop your head up and there is little point trying to manoeuvre to a hidden spot because they instantly know where you are. This feeling of specialness is compounded by the behaviour of your squad mates who won't venture anywhere until you go first. On top of all that there are many choke points where enemies re-spawn endlessly until you and only you manage to cross magic threshold.
Turning the difficulty back down to normal made the game a far more enjoyable experience for me. I still die occasionally but I am making more regular progress and the flaws mentioned above are not so obvious when you progress through the game at a normal pace.
Would it be possible to make an enjoyable first person shooter that didn't make the players specialness quite so obvious?