Alright, I decided to buy it.
My personal opinion -
Fantastic, as far as military games go. With up to 150 players per map, the games are massive. You can choose between a variety of different classes.
Rifleman - Can get the M203 w/ Grenade launcher, as well as many other assult rifles, best for all around use.
Gunner - Heavy machine guns
Medic - As the name implies, you can heal people
Engineer - Has Surface to Air Missle Capabilities, also can use mortars
Sniper - Amazing class. You need to be rather skilled to use correctly, but after calculating the distances and adjusting your weapon, you can snipe from a max range of about a kilometer.
There are tons of different vehicles, from small rafts (ala SEALS) patrol boats, APCs, Jeeps, Hummers, Dune Buggies, Attack Choppers, Chinooks, ect.
The maps are almost unfathomably big, with some over 50 square kilometers. The graphics are pretty decent, the water graphics are amazing. If you are into strategy games or just FPS, this comes highly recommended by me