No reason this wouldn't work right? Marksmanship should effect every attack a given ship might perform shouldn't it? (If this has been posted I apologize, I'm not convinced the forum search bar is that effective.)

Yes, you can use marksmanship on both attacks.

Same goes with a second attack from gunner.

Cool, I know I've seen that one here before but I was playing a game last night and the guy said it spent like a token but I couldn't find a thread on my phone to back it up. Now I have one

It is also covered in the FAQ.

http://www.fantasyflightgames.com/ffg_content/x-wing/support/faq/X-Wing-FAQ.pdf

You can also find the FAQ via the pinned "index" thread at the top.

No reason this wouldn't work right? Marksmanship should effect every attack a given ship might perform shouldn't it? (If this has been posted I apologize, I'm not convinced the forum search bar is that effective.)

Yes but one of the drawbacks is that Marksmanship is an action and you also will need a TL on your target that you can spend to fire the missiles. So that becomes a two round process (and hopefully the ship you TL'd is still a legal target) or you will need a way to trigger 2 actions in a round (PTL, Squad Leader, various pilot abilities, etc).

I'm using a z95 list w/ blount and kracken so the passing of the action to blount w/ marksmanship is easily done.