New Suggestion Possible Make Clans With Tags For Possible Rewards from Group Games 
etc would Open new type of adventure with friends with special rewards ;o and etc!
I was actually gonna make a post about having a clan tag system until I saw your post lmao.
It would be great for games like Little Crusaders to get bonus xp/units for taking out the dragon with help from a clan member. This also works in other game modes like Virus or ZM.
Changed your title to better reflect what you’re suggesting.