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.
For me sounds not good. Injuries like this should not give any bonuses for soldier. If soldier lost his arm, he should always get negative bonus. But surviving bad injuries, meybe he should get bonus resolve or even get negative resolve bonus?
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