Following Activision Blizzard’s refusal to voluntarily recognize the union created by QA testers at Raven Software — a company that works on Call of Duty games — the testers went through the election process and chose to join a union last month. In a letter to employees, Activision Blizzard’s current CEO Bobby Kotick stated that the firm recognizes the union and will “engage in good faith negotiations to enter into a collective bargaining agreement.”