Platoon sizes

Vallter: There are no plans to change the limit of platoon members. For more numerous teams and, especially, clans tank companies are implemented in the game. In this way a well-organized group of players will engage only groups of the same level. Also we are discussing the possibility to add companies with different point limits.
RaZoR193, only 1 player with a premium account is needed to form up a platoon. If you don't want to buy a premium account you are free to join existing platoons or tank companies.