The chalk outlines (where you can purchase weapons) didn’t come until much later, although you could always buy weapons even in the early prototype. I always wanted chalk outlines since day one. I sort of imaged it like the Hitman series, where there are outlines of weapons on the wall of your hideout, and as you progress they start showing up. Once our Lead Artist, Brian Anderson, starting playing some Zombies, he whipped up the chalk outlines, re-did the lighting and generally made it look pretty.