I think you should be able to make official in game groups/clans/armies, instead of making unofficial ones, and add a tab in the baddle areas where clans can host and join clan battles, staking money or not on their decision, but clans can only join battles by their leader and all clan members get a pop up in-game asking them if they want to join or not. Putting a price on owning clans would also be a good idea to keep from having a surplus of small clans or even one man clans. A promotion establishment in the clans would also be good, so clan owners could have their men led into battle by a number of others when he/she is not present, along with stars with the clans average level, and it can only fight with clans in a certain level range of its own. + if u like, cause we want our clans!