The campaign is really easy on hard because the AI sucks.
I think the AI int his game is pretty good. Especially compared to other BF games where the AI consists of (enemy more than 10 feet away. Throw grenade. Closer than 10 feet. Knife.). They take cover in different spots and if their allies die they will fall back to more cover and other allies.
The SP mode isnt very hard at all. Just keep in cover and you will do fine. Right now i am going to blaze through it to get the unlocks then do it again for trophies and collectables.
theres a part where you get into a tank battle during a hurricane, and theres a tank that snipes you out like all the way from across the map. that took me like 2 hours to beat it on top of trying to take on 2 or 3 tanks at a time. other than that, enjoy the great pgraphics and gameplay. i actually like it even though, it really does have a massive hole in the plot compared to bf3. i thought it was a sequel at first because it has so any cameos and tied russians and chinese again but.... its 6 years after bf3.
--..::PSN::..-- Dead_Candidate I don't play COD Multiplayer, but I do everything else.