Basically you start with shotgun and no grenades.
For every kill you get a point.
For every intel capture you get 10 points.
To use other weapons/grenades you type /buy <name>
You can sell weapons and grenades for points.
Grenade costs 5 points
SMG costs 20 point
Rifle costs 50 points
Guns are bought until you leave.
If you die with 10 grenades you spawn with 10 grenades.