a clan can recruit max 120 / 120 players. 100 players can have rank and others are apprentice. even if you recruit 120 players you didn't increase this prouess. it satys lvl 6/10
We're aware of this issue. It's not a bug. You will be able to increase the level of "Warriors of Steel" as soon as our developers extend Clans. Unfortunately, we're not ready to implement Clans' extension for now.
For now, lvl 6/10 is maximum.