I really liked the single player. Not revolutionary, but interesting environments, I did like the twist during the middle, even if it did ZERO to change the gameplay. For a Quake game, it was pretty good. (just play the included Quake 2 disc to see how simple the last single player version of this series was) Multiplayer is so much better though. Running around at top speed, blasting people with the railgun, hearing "QUAD DAMAGE" is great nostalgia. Hunting for armor and health packs is such a foreign concept now too. Crazy.
I could probably be on for a while tonight, i'll give everyone here a friend request.