Yes, there is such way. You can do it yourself as it is very easy. Just download OpenBRF, open
mm_french_uniforms.brf and
mmbrituniforms.brf in another window. Then all you have to do is to copy one of british uniforms and paste it into
mm_french_uniforms.brf. Next step is to rename this new uniform to
character_uniform and delete old
character_uniform. That's all. It's really easy, just give it a try