Infinity Ward has revealed a new competitive destination for Call of Duty: Modern Warfare 4 called Kill Block. Described as an “adaptive multiplayer battleground”  the mode pits players against each other across modular, constantly shifting maps. In a blog post, Kill Block  is billed as “a modular multiplayer battleground that reconfigures every match, challenging players to rethink routes, sightlines, and combat spaces on the fly.” The name Kill Block is actually a codename for the West Bridge Advanced Military Training facility,…