Great Single-player campaign, amazing multiplayer, and a whole heap of non-stop action.
Flaw No. 1
Some bugs hinder your movement and/or can freeze your game.
Example) The terrain in the background did no load and all I saw were floating figures to shoot at.
Example 2) Some places are not meant to go to in single-player... Wander near those locations, and you may find yourself trapped and in need of a grenade to kill yourself.
Flaw No. 2
The close-quarters combat is definitely not intense, and is definitely not worth anyone's time. What happens is the Germans attack you with a melee attack randomly throughout the campaign, and (with your amazing reflexes and ingenuity) you catch his weapon and face-off between him tugging the gun back and forth. But in video game controller standards, all this means is that you tap between the left and right bumpers until it tells you to press A to knock him out. Very very dull.
Flaw No. 3
There were times when I wish there were more stealth missions or solo missions. You are always with your squad, and if you want to sit back and snipe, it doesn't work. You can snipe, but not in a stealthy manner.
Flaw No. 4
The enemy soldiers constantly go through the same pattern to kill you. And they will always be in the same positions.
Example) Say you are playing through a level, you get to a bunker with a soldier behind a crate and another soldier near a pillar. They catch you off-guard and you die. You restart at the last checkpoint and get to the bunker again. One enemy soldier will be near the crate, and the other near the pillar. This will never change. So if you memorize the campaign, you could simple have your trigger aimed at those locations to put them out in a flurry of bullets. I wish they randomized the orders and made it a little more spontaneous (like the war).
Flaw No. 5
This isn't particularly a flaw, but it was a bit of a nuisance to me. When you wish to plant an explosive, instead of just planting it and running, you have to sit at the explosive and rotate the analog and press a couple buttons in order to set the explosive correctly. Though this is more realistic, I would have preferred to just disregard it and move on. I'd rather kill people than sit at an enemy artillery twisting the analog to detonate an explosive.
Flaw No. 6
Again, nothing much of a flaw, but more of a nuisance. When watching the cut-scenes for the first time, you will sit back and gape at the astounding details and graphics (although some of the voice acting is a tad cheesy from time to time). But the second time around, when you are watching that same exact cut-scene... you are going to want to click a button to skip it, right? Right. But you can't. You have to sit through that cut-scene to the very end. Annoying? Yes. Can you survive? Let's hope so.
And that's about it. I may have forgotten some things here and there, but overall the game is amazing. This review was to point out the flaws because I'm sure most of you have already read 100 different times why this game is great.