And...how do you KNOW this?, not trying to be mean or anything I'm just curious
btw love ur sig
it hasn't been officially confirmed yet, but it's on his wiki page... and while i know wiki has about as much credibility as IMDB - it's still a safe bet to assume it's him. Troy Baker is huge voice actor. if you can think of a video game or anime, he's probably been in it, so it's pretty easy to recognize him when you hear him.
Some examples:
Vincent in Catherine -
Kanji in Persona 4 -
Snow in Final Fantasy XIII -
then re-watch the RE6 trailer and listen to the Merc:
also, i think they may have used him for facial mo-cap for the merc. they look pretty similar. o_o
anyway, i could be wrong because it hasn't been OFFICIALLY confirmed yet, but most of the voice actors for the game haven't been confirmed yet... so we'll see.