Well, there are tow ways of getting larger amounts:
1, the regular way: do quests and whatnot for the village with the cloning thing in it until you can recruit more than 7 soldiers, I think the relationship with the village has to be more than 5-10.
2, cheat: get TweakMB, and set it so that doing a quest for the village will give you like 30 relation points instead of 5. This is the only way to do it with this, as tweakMB's village recruitment feature will not work with standard M&B mods.