Just came up in a game, if a marine attacks an opponent via unarmed strike, and his opponent has a weapon. does he get the -20 to hit? I say no, as Marines have Unarmed Master. Opponent says yes, as it is Unarmed Warriors, a Prerequisite for Unarmed Master, that makes the user's unarmed attacks ignore that penalty.
Does having a talent granted for free give you the benefits of its prerequisites that you are not specifically given at character creation?