Hordes of abyss creatures were on their way to attack both the transport and the helpless survivors in the underground caves.
Both of them were critical situations that needed to be quickly handled. They were equally important, and Emery could not prioritize one over the other.
The problem was, that the platoon barely had enough just to guard the base, much less cover two more areas. Hence, after a brief moment of consideration, Emery decided to inform Julian about the matter and quickly changed the arrangements as follows:
Main Gate: Squad Julian and Squad Ryan
East Gate: Squad Arcana and Squad Wage
West Gate: Squad Roran and Squad Rayne
They did not have much time; if he failed to be decisive, it would not end well for both the transport and the survivors underground.