The Defiant map pack may not be right for any but the most dedicated Reach players, if only because the core multiplayer offerings in Reach are so good. However, if you've been playing for several months and are ready for some new maps, Defiant doesn't disappoint. The new environments are all gorgeous, well-designed, and have a great flow to them. The pack also offers a little something to everyone, rather than focusing on one particular type of multiplayer gamer. It's a good deal for the $10 asking price, but only if you've really tired out on the existing stages.