With such a strange franchise at your disposal, why not come up with some unique objective modes, or a more robust set of offline characters? (gamingunion.net)
Along with the 50 waves, with one boss battle per ten waves, you must also complete objective modes. (gamerassaultweekly.com)
Didn't particularly care for this map, though it will definitely be great for two sided objective modes. (articles.gamerheadquarters.com)