An extremely in depth game with a multitude of ways to play. They continue to update it to this day, and it is incredibly cheap. One of the best games in gaming.
A moving campaign about Chief's humanity and dealing with the loss of a loved one. Multiplayer could be better, but I was optimistic at the time for this being the start of a new trilogy.
Despite being slightly worse than some of the other entries, this is still some of their finer work. Enthralling characters, well worth the price of admission.