By offering a subtly different, more structured, experience when compared to the brash free-for-all offered by the likes of Team Fortress 2, Enemy Territory: Quake Wars manages to be much more than the generic 'me-too' title it could so easily have been.
It's not perfect, the unbalanced nature of the maps, the spawn camping and a fairly harsh learning curve for newcomers may put off a lot of people, but for those who put the effort in to get past that there's a deeply nuanced shooter to be found.