Gaming industry veteran Glen Schofield has announced that he is retiring from day-to-day game development, and he spoke to GamesBeat about his career, where a number of notable topics came up. Among other things, he talked about the canceled third-person Call of Duty game set in Vietnam, discussed Call of Duty’s game budgets, and revealed the unlikely story of how Dead Space came to be. On the subject of the Vietnam game, Schofield said he was working on this third-person…