Upon seeing Gros's expression change like that, Austin was even more certain of his suspicions.
When he initially planned to shift the battlefield, Austin clearly noticed the fight between the Dragon Nest Tribe and the invading enemy below. The Dragon Nest Tribe had already gained the upper hand, and the elite Blood Claw forces were obviously on the verge of being annihilated by the Dragon Nest Beastmen.
However, this fellow named Gros showed no reaction. Instead, he followed Austin's intention and shifted the battlefield together.
Austin didn't know what the purpose of activating those elite Blood Claws and their attack was, but this Gros clearly had high popularity among his subordinates, yet he didn't care at all about the lives of his comrades.