Were around six weeks out from the launch of Halo: Campaign Evolved , which is a remake of the single player campaign from the very first game in the franchise . You know what that means: the marketing is beginning to heat up. Xbox just released three beefy gameplay videos, along with a blog , that shine a light on various mechanics. The first video spotlights the many ways in which players can alter gameplay to suit their liking and preferred difficulty level. Each mission can be tackled alone...