This is achieved by earning “renown” after successful battles. Increasing your party size can be done in several different ways, but your main concern should be raising your clan tier. How to Increase Party Size in Mount & Blade 2 Bannerlord Here’s how to increase your party size in Mount & Blade 2 Bannerlord. Bigger battles call for more troops, but first, you’ll need to earn the right to lead more substantial armies. While you start out with just a handful of troops under your command, it won’t be long before scoring victories against plundering bandits and looters requires more than just a rag-tag bunch of low-level soldiers.