Actually, I’m changing my choice. To me, The Answer is best (That SAW with exploding bullets). In super fiesta, it’s just OP. I found it in the Halo 5 Campaign right before a warden eternal fight, and beat him in about two minutes with The Answer. Much faster than my other battles.
If anyone is wondering how to find it in campaign (If you haven’t before) in the first Genesis mission with Fireteam Osiris, right before a fight with warden, there is a crashed pelican on the left of you. Go there, look around and the Answer will be sitting there. I don’t know if it appears or not due to difficulty. I found it on normal and will soon see if it’s on easy, heroic and legendary. You’re welcome my friends.