Sam let Chatur hide in the Vronti castle for the time being and he would come to the Origin castle along with him.
He decided to play around the battle for these two days and that too in direct battle. He didn't want to battle with undead and other tricks.
In fact, he wanted to go for an old-fashioned fist fight for a change, so he and Arman immediately covered their faces with black cloth as they wore full black. They don't even have any special inscriptions and enchantments. They are just some high-quality normal clothes.
As for why they are wearing this, it is just because Sam just wanted to have some fun.
They reached the base that was under attack as discreetly as possible and joined the army directly. Sam flashed his special commander badge to the acting commander in secret and Arman who also has a special badge showed it and only the acting commander at that base knew of their real identities.
