Raven Software employees will stage a walkout in protest of recent QA layoffs at the studio.Last week (December 4), Raven Software – a studio working under Activision Blizzard – laid off more than a third of its QA testers. The studio announced a restructuring of the quality assurance department, where contracted testers would either be promoted to full-time or laid off.The company began contacting workers affected from December 3 and will continue until December 8.