Graphics: 6/10 (Quake 3 being 5/10, HL2 being 9/10)
The graphics are, in my opinion, better than Quake 3.
Sound: 4/10
Not it's strong point, but it has it.
Gameplay: 9/10
Original idea, it's paint ball... jumping high and fast can be a little tricky
Online: 7/10
Not a lot of cheaters, there is however an annoying wait to get maps if you don't have them. Painfully slow download times.
Community/Forum: 8/10
If you ever have questions, most topics are replied to at least 3-4 time a day, which means if you do have a problem it cant be fixed quick.