I need a cd key to play this game and i dont have one. i downloaded it and was hoping i could play but i dont seem to know where to find the cd key does anyone else know where to find it?

You don't have to use a CD key for playing in single player, but if you want to play online or over LAN, you can use the first key listed here.

Ubisoft made them free after shutting down the original servers: you may want to have a look at the new community site, since you have to patch the game, in order to play it with others.

https://www.massgate.org/