You are a terrorist, your main job is to blow up cars and gates.
After you bought the C4s you can store them in your backpack just in case when you die you don't lose them. You can use the /blowcar command to blow cars and /blowgate command to blow up a gate such as the F.B.I. gates, C.I.A. gate, Army gate and the Faction X gate.
Remember: You need 2 C4s in order to blow up a gate and 1 C4 to blow up a car.
Every time you blow up a gate/car you will gain 10 wanted stars which you can get rid of by using a bribe star, by getting arrested or by getting killed.