First, find all the terminals in Halo Combat Evolved Anniversary. At the end of each terminal video, five forerunner glyphs will flash on the screen. Write those glyphs down, then launch halo waypoint. Press start, then X. Five or six colored circles will appear on the screen. Press the buttons that correspond to the colors in order from left to right. for example, if the first circle was blue, you would press X, because X is blue. Then, put in the five forerunner glyphs in order, and it will give you 7000 credits, and because there are ten terminals, it adds up to 70000 credits overall. i just tried it and it worked.