Discrepancy between GM screen and RQG rule book.
GM screen:
'Summary of Combat Results' box says "A critical success ignores armor and does maximum special damage plus damage bonus."
Attack/Parry and Dodge tables show the same
But the RQG rule book (page 206) says
"A critical hit ignores the effects of armor or any other protection, and does impaling, slashing, or crushing damage (depending on weapon type), as described above."
So, just plain special damage ignoring armor, not max special damage ignoring armor.