The mod changes several game mechanics at once:
1. Now you can meet enemies' groups with up to 144 fighters.
2. Large groups are composed of existing spawn lists with the help of randomness, depending on the proportions of units.
3. The dynamic difficulty level of opponents.
New:
4. Three versions of the mod are available. Two for ordinary players and one for challengers. Versions differ by calculating a dynamic difficulty multiplier.
1) mod_lb_st: ST-version removes restrictions on the strength of your group and on the number of days that affect difficulty. In my opinion, the most balanced version, but it's likely that you won't feel any changes in the game if you are not strong enough.
2) mod_lb_ch: multiplier = first four characters in the name of the first mercenary. For example, name = 12345Player The lone wolf, mult = 1234;
name = 0010Player, mult = 10. If the first character is not numeral, then multiplier = start difficulty multiplier. 
3) mod_lb_pl: multiplier = start difficulty multiplier * day * 0.005.
5. Some bugs fixed.

ATTENTION!
The mod is most likely very unbalanced.
The mod is not compatible with any other mod that modifies files in the archive.
The mod is poorly tested and is work in progress. I advise you to backup saves.
Mod_hooks ("modding script hooks") v11 or later is required.