Retailer Begins Selling Certified Pre-Owned Video Games in 1,700 Stores BENTONVILLE, Ark., 2014-10-29— /EPR Retail News/ — It’s game on at Walmart today. The retailer announced that it will offer “Call of Duty: Advanced Warfare” 24 hours before the official release. The Day Zero Edition will be available to customers starting at 12:01 a.m. local time on Monday,…