If I may – Mordheim: City of the Damned made an interesting implementation of wounds: some of them granted certain bonuses on top of giving heavy mallus (for example: losing an arm made a character harder to hit). It was a good idea to incentivize keeping wounded characters in play.
![Permanent](http://battlebrothersgame.com/wp-content/uploads/2016/06/mock_06.jpg)
I reckon, a missing nose belongs to the also-bonus-granting ones then. ^^