Greetings
let's see .. you could also make a cannoness and or loader, a field medic, a hussar equivalent to a sniper(ress?), then the field cook of course.
You could also portray the hussars at rest (picture a vignette: one hussar wringing out her hair with both hands while another is sipping some tea (or coffee).

Imagine one doing a sabrage while the other mends her uniform, hat, stockings whatever

Okay ... I probably won't see those miniatures, but they would surely attract the eye and make for something different.
Jo