This game was awful. Even taking into consideration the fact that it was made so long ago it is awful. It is trying to be halo but failing epically. You just run from room to room killing one or two types of enemies until you finish the mission. Then you do it all over again. I found myself getting lost because everything looks the exact same.
Avoid this game. After playing about half way through I sealed it up and sent it back.
Look, I love Quake, it's one of the best shooters for online free-for-all deathmatches for its speed, fun/balanced weapons, and arcade feel. But this version is horrible. The framerate is ungodly, and the loading and connection times are ridiculous.
Quake 4 was an extreme disappointment. Not only that, but I expected a multiplayer aspect on one console with friends at home...you know, REAL friends. Instead, I got a game that can only be played single-player, unless you have Xbox Live. Now onto the actual single-player aspect. Not very impressive. The graphics are last-generation at BEST. The actual gameplay is mediocre. Finally, the story is terrible and the variations made in-game that are supposed to be cool provide no new powers or anything that could make the game at all interesting. I want my money BACK!!!