Its a FPS. Its uses the Play4Free system, with the Play4Free funds that Battlefield Heores uses. Its like a normal FPS. Except you have to buy the guns. But you can earn funds free. There are 4 classes, Assault, Recon, Medic, Engineer. Like Battlefield 2 with some of the same maps.
i like BFH more because of the smaller maps. BFp4f is only fun if you have map knowles and a sniper. (played it maybe 3 hours befor deleting it directly after.)
best f2p online shooter atm, i think is S4-League. (the only fast one that is)