Special units can really help you recruit more troops. In this guide on How To Recruit Special Units In Mount & Blade II Bannerlord we explain a great but rarely used mechanic that lets you recruit more troops than just the towns and villages have to offer, including exclusive and special units.
Some of the units can only be recruited by these means. They won’t be found as captives after a fight, they won’t be found at villages or towns. However, this doesn’t always mean that the uni is strong. For example, you can find an Expert Thug that can level into a Master Thug, a rare class of soldier. The stats are really poor though, 20 across the board. Much weaker than average units. However, the additional units do make it easier to fill large armies (once you have a huge party size)
How To Recruit Special Units In Mount & Blade II BannerlordRecruiting these special units is actually really easy, although expensive. Make sure you’ve used our money making tips to get plenty of Denar. Head to any large town or city, those with a tavern. Although you can hire Companions here by seeing if there is one in the portrait bar at the top, this is where special units hide. They do not show in the portrait icon space.
You have to actually enter the tavern. You will usually find at least one Arms Dealer or special character that can be recruited. Simply walk around and get close enough to see the names. You should notice relatively quickly that they usually stand in similar spots and often seem different to the other people inside the tavern.