hmm well if you know how to import models, look in the model section for a shield, then import to the left hand or right hand, if you dont know how to put a shield on a unit, read the tutorial, it it pretty easy
it uses special effects, you gotta name the hand to put it in, I think like, "Left hand" and "Right Hand" but I am not sure, havent done that in a while
If it's so bad, then just another shield that actually fits that. (So if the footy shield is righty oriented and the capt. shield is lefty, and you wanted a lefty footman shield, then use the freaking captain one instead