The Cossack way of life is very interesting because anyone can become cossack after they adopt Orthodox Church. The most famous group of Cossacks are Ukrainian Zaporozhyen cossacks. They protected Ukraine from Sultans Ottoman and Polish hussars. Cossacks fight with saber and flintlock. They had very clever way of fighting and were so good with saber they could deflect arrows. They had light armor or none, very fast with saber, and precise with flintlock. So it would be very interesting add-on in For Honor something like Shaolin but on the Knight side.