What is the difference between the sniper rifles in Halo 5?
i have no idea what you mean
So you have uncommon, rare, ultra rare, and then legendary. What’s the difference between them.
It fires to slow.
So the only difference is it fires faster
End of the line (rare) fires faster with reduced recoil and lower damage.
Marrow of time (ultra rare) has 6 bullets and doesn’t descope if shot, but has more recoil.
Nornfang (legendary/mythic) gives a damage boost, which makes it a one body shot kill.
Thank you
Sure thing. 
Yea the Nornfang is disgusting in the hands of even a decent sniper. If you can hit the side of a building you can get a kill lol.