The closed beta of the Chaco War Multiplayer game is available for users of Malavision: The Origin in Paraguay and Latin America every day from 08:00 to 12:00 PM (UTC-4:00 Asuncion). Enjoy it!
For more information about the Chaco War visit:
http://store.steampowered.com/app/634810/CW_Chaco_War/