Yeah. A fixed base doesn’t fit with the roving mercenary company idea.
Although I think much of the base idea might feed into the camp followers that you will be able to hire.
A mechanic that allows some sort of ‘upgrading’ and RPG management of your travelling camp would be nice to see.
Hiring a better blacksmith or improving the blacksmiths wagon so they are able to repair equipment quicker or improve equipment; that sort of thing.