Hello everyone reading this! This is my first post so sorry if it's not laid out the best or if I ramble on. I am also not very techy so please try to dumb it down a bit for me. 
But I am looking for new PC gaming headphones since my old turtle beach tangos are pretty worn out. I have done quite a bit of research and I'm still pretty stumped on what I should get for a headset/ headphones. I am primarily a FPS gamer, CoD 4 remastered when that comes out (because no one wants infinite warfare) CS:GO, and the likes.
Edit:
Ok after doing some more research I have narrowed it down to 2 headphones..
Either sennheiser hd 598, or audio technica ath-ad700x.
I'm leaning more toward the audio technica..
Now I have a few questions about these.
I'm pretty sure neither have "surround sound" as in like what astros or turtle beach would have.
Q #1: Will I get positional sound from either of these? IE foot steps, grenades/ pins pulled, gun shots etc.
Q #2: Which of these do you think would fit me better/ would you rather own.
Q #3: Is it comfortable for hours of use at a time?
**Q #4: Do I need a sound card or dac/amp?
Q #5: Is there a better alternative?
**If a dac/amp is better and needed, would the schiit (lol) fulla work fine?
For alternative headphones price really isn't an issue as long as I don't go over ~$300 US (my wife would kill me).
Thank you to anyone reading this and replying trying to help me!
But I am looking for new PC gaming headphones since my old turtle beach tangos are pretty worn out. I have done quite a bit of research and I'm still pretty stumped on what I should get for a headset/ headphones. I am primarily a FPS gamer, CoD 4 remastered when that comes out (because no one wants infinite warfare) CS:GO, and the likes.
Edit:
Ok after doing some more research I have narrowed it down to 2 headphones..
Either sennheiser hd 598, or audio technica ath-ad700x.
I'm leaning more toward the audio technica..
Now I have a few questions about these.
I'm pretty sure neither have "surround sound" as in like what astros or turtle beach would have.
Q #1: Will I get positional sound from either of these? IE foot steps, grenades/ pins pulled, gun shots etc.
Q #2: Which of these do you think would fit me better/ would you rather own.
Q #3: Is it comfortable for hours of use at a time?
**Q #4: Do I need a sound card or dac/amp?
Q #5: Is there a better alternative?
**If a dac/amp is better and needed, would the schiit (lol) fulla work fine?
For alternative headphones price really isn't an issue as long as I don't go over ~$300 US (my wife would kill me).
Thank you to anyone reading this and replying trying to help me!