Other than Recruitable Prisoners, this is the other must-have mod. I don't recommend playing Kenshi without it.
Once you've mastered survival on your own, it's time to start recruiting a squad, which will help you thrive in the post-apocalypse. Thing is, to have your own army, you need more space than the vanilla game allows.
That's where this mod comes into play; it increases the recruitment limit to 256, maximum members available for a squad to 50, and the maximum squad limit to 20.
If you use multiple mods, make sure to place this one at the bottom of the load order. Many different mods out there change the values on the game's data tables, and they will often overwrite the 256 recruitment value.