Because the destination was a newly reclaimed area the Northern Union had just snatched from Chaos's hands, the remnants of Chaos could be lurking nearby. Moreover, Jon had mentioned that Chaos remnants had indeed been found in the ruins area, so Malin had applied for a squad of Punishers from the Church of Justice—Malin directly requested Nameless for people, and after receiving divine revelation, the old Bishop of Carterburg handed over his most Elite squad of Punishers to Malin.
Of course, Malin was responsible for their equipment.