Campaign was fun to play. You can pick and choose which mission to play next. You could do all the side missions first or just skip them and play main missions but all the missions award perks/equipment. Multiplayer is fast-paced, exo-suit double-jumping madness. Unless you are a slayer, be prepared to die quickly and often. Oh, and supply drops and weapon variants. I hate entire concept of this. With the luck of the draw you could unlock an Epic weapon in a supply drop that has built-in perks that stack with your chosen perks OR you could spend even more money on the game by purchasing supply drops with COD points (in-game currency obtained via cold hard cash). Zombies. What more need I say? I'm a huge fan, going all the way back to WaW where it all started. I've always been cautious about the different add-on "experiences" each COD has offered. Whether it's fighting aliens or exo-suit zombies, wasn't a huge fan of those. But this time around they stuck with non-exo-suit zombies (a good thing). Plus, the retro thing kind of lightens the mood versus the darker, grimmer Treyarch experience. The Legacy Edition also includes Modern Warfare Remastered. This game is easily the best FPS since Goldeneye, definitely a genre defining game. Also, its boots on the ground gameplay brings a refreshing reminder of what it was like to play COD before eco-suits. However when playing online, you better watch out for all the grenades. You better not bring a knife to a grenade fight...