This game is so good online. But pretty average single player. In single player it is not like usual battlefield games you actually have missions and objectives that you have to carry out. But it is not very good. Single play missions are only decent the first time you play it.
The levels are quite easy to complete (except the last 2) and hotswapping is useful so your not reloading all the time. Also you dont have to walk huge distances.
The online play is spectacular. This is where you have to take flags. The maps are really good for the most part and it is good for snipers and for people who like CQB. In the online play you can call mortar strikes and artillery strikes (which are completely devastating – but watch out for teammates) which is heaps of fun. And you can use C4 to blow up tanks which is equally as satisfying.
All in all its a great game and is worth every cent (if you are capable of playing online).