I've looked through all three of the basic rule books, but I've yet to really find anything about wound penalties caused by Heavy or Critical wounds. Other then the side-effects from Critical Wounds there doesn't seem to be anything.
I find it a bit odd that a character can receive -10 to all skills due to fatigue but remains perfectly unaffected by being Heavily Wounded or even in Critical damage.
Have I overlooked something?
At the moment I'm imposing a -10 when the players drop into Heavily Wounded and -20 for being in Critical. How have other GM's handled it?