THE MOST MINDLESS GAME EVER CREATED!!!
Well, to begin, Q3A is not as good as Unreal Tournament. The only thing Q3A has over UT are way better models (one for every mood you're in at the time) and the running around/shooting feels a little better than UT. Weapons are the same as Q2 also, and there is not very much lag.
But if you're in the mood the relieve any stress besides getting pi$$ed of by your teammates in UT, lock 'n load and pick up your copy of Quake 3 Arena!
Plain deatmatching gets pretty boring after awhile; you know you should take a break when you start fragging yourself on purpose in this game. Also, sometimes it feels like a really big expansion pack for Quake 2, and some people like myelf will get a hadache from playing it two hours straight, because of the bright graphics and fast gameplay.
Also, the maps could be better. But the worst part is that you get a couple Capture the Flag levels and that's it; two modes of play. Fortunately there is an expansion pack coming out for team play.
The Bottom Line
Shoot people in a first person perspective over the net.