So pg 84 of the CSM Codex says that a chainfist uses strength+2D6 for armor penetration. Is this assuming that the chainfist doubles the users strength (up to the max of 10) and THEN allows 2D6 on top of that for armor pen?
So a termie with a chainfist assaults your land raider... he has a chainfist. Are we talking 8+3(D6).