Exactly. We would have to think of triggers and exceptions you cant really control.
For that to work properly the reserve units need to be implemented first. So the players would be able to make the right squad against right enemies. Togerther these two systems could make up to an endless combinations in squad composition, regarding the enemy in sight. With events on top of that, it would make the active squad composition even more a tactic choise even while travelling, except if the events would allow you to chose the startup.
Otherwise it will be just a disaster where the player always ends up losing, just because one or two sellswords have the wrong affiliations.
