WarRock- good free online FPS

I wanted to tell all the PC gamers on here about WarRock. It is a free FPS online (option of membership), it is a mix of call of duty and warhawk. You can drive cargo trucks, motorcycles, tanks, planes, and jeeps. As you progress you rank goes up and you get what are called dinars. You can use your dinars to buy weapons (usually a 7 or 30 day pass).There are 5 classes: engineer, sniper, medic, assault, and heavy trooper. I used to spend hours on this game it is alot of fun.Here's the link.http://warrock.gamersfirst.com/index.php