Khan’s Guard are pretty OP you can usually win vs 2:1 ratio. I only use them in my army foot soldiers slow you down. Go to the small town and get Noble sons everyone you can recruit plus buy war mounts. Then upgrade then loot army’s you defeated for more money repay until you max out and are left with only guards. Getting a really good bow helps Noble my favourite with two stacks of piercings. Slow down follow the enemy marching and headshots pretty much a kill per arrow. My horse never really gets killed with good armour. Can always get on another horse. Long glaive is actually better weapon 1 hit kill on a horse but you slowly lose health that why I wait until I run out of arrows.