If you like to play a game which can be completed in a number of diffrent ways, therefore keeping you hooked on it for months on end and will have you reverting back to it after playing the latest installment of whatever, then this is the game for you. Of course, the gameplay is not the greatest of any game ever made (and this should never be bought as a priority over Halo or Zelda) but the sheer amount of time that you can get out of this game will make it one of the best purchases that you can make for the Xbox 360. First, you will complete the single-player campaign, which can be done in fifteen to twenty hours, if you are fairly proficient and don't rush. Then, however, you will complete it with the other four classes (at the beginning of each campaign you select a class of warrior, each with its own unique style of playing) each of which give a very diffrent experience of the game, taking the total amount of time spent on the game to about eighty to one hundred hours. Then, you will get each of your classes to the maximum level possible (and I have no idea of how long that will take). Even after you've exhausted everything that the single-player campaign has to offer (which is very unlikely, given the ridiculous amount of customization options and peices of equipment availible) then all of the fun is to be had all over again, many times, in co-operative multiplayer. In conclusion, if you want to know what the maximum amount of entertainment £20-£30 can give to you, then this is it.