Don't think it's too harsh for members of the Guard Squad to hand over seventy percent of their spoils of war. You must know that when there isn't any battle, their livelihood is entirely dependent on supplies issued by the Noble Clan families.
In addition to the usual supplies, including the weapons in their hands and some other non-essential items, these are all provided for free by the Noble Clan families.
There is a common saying that goes, "Train the soldiers for a thousand days to use them in a moment of need." So even if the family head takes away all the spoils of war, there wouldn't be any discontent in their hearts.
After receiving their orders, the Guard Squad left, and just as they returned to the deck, they heard news from the Watchtower that a large ship was approaching their direction.