Satan's current situation very much needs integration training, not only because he needs to regain his state after recovering from injury, but also because Satan has added several new people.
Jesse Lee is still injured, but once he recovers, he will need integration training to fit into Satan's combat system.
James also needs integration training, and so does Rebrov.
Gao Yang initially didn't plan to bring Rebrov into Satan, because Rebrov belongs to the technical branch, and his individual combat ability as part of the infantry is quite poor. However, Gao Yang believes that a real artilleryman, especially an outstanding artillery commander, is necessary. So, even if Rebrov isn't suitable for individual combat, he must be included.
