Base Model Animation

I am currently developing a little low poly RTS game which have animated characters, however, to add customization and switching of weapons etc. I want to be able to have an animated human base model with other objects such as clothing and weapons to be added to the character in run-time which would work flush with the base model.

I understand that all these meshes would need to be animated with the base model but don’t know how to implement this idea into unity from blender

Shared skeleton and animation state