Even with a horrible campaign the multiplayer alone makes this game well worth buying.

User Rating: 9.5 | Chromehounds X360
Chromehounds is definitely one of the best mech sims I've seen. The customization is amazing but it does take a lot of getting used to, however once you get used to it you can make just about anything. I've seen everything from an abrems tank to a Brumak .
However the single player is just horrible, and both single player and multiplayer have a very steep learning curve. But once your used to the game and made and effective "HOUND" the game is well worth buying. Also the Neroimus War is nice mode that actually gives you a good reason to have a clan or "squad" to work together on missions to win the war. The missions take place in three different country, Tarakia, Sal Kar, and Morskov. Also each country has a gigantic super weapon that will some times be deployed during a war, that is impossible to defeat on your own. And a single war can last anywhere from a week to a month.