Relic Entertainment has launched an open beta for its upcoming war RTS Company of Heroes 2 on Steam. It will last from today until June 18.The beta is free for all, and features six maps that can be played in either co-op or competitive multiplayer modes. The beta will feature the first 45 levels of character progression.If players participate in the beta and purchase the full game within 60 days of release, their progress will carry over.