does anyone know if they will be adding the 4v4 deathmatch mode to custom games at the games full release . im wondering because i have a large group of friends who would like to do 4v4 but we cant because its not in custom games.
You don't get any rewards for custom games - farming isn't the reason. It's probably just because it isn't fully implemented yet. I'd expect to see the full range of game modes in custom matches come release.