Despite Ubisoft’s game being still in the closed alpha stages, Rainbow Six Siege already shows us that both sides (whether it be the attacker or the defender) will have 5-5 classes each. Everyone will have his own unique equipment and gadgets, and in order to have the balance kept, Ubisoft have implemented a simple, yet very effective rule: there can’t be two or more of the same class in one team. This is a great idea.