When you're m0 hunter is better to use with twins if you are good at driving and shooting around target, than compared to Viking where speed is a huge difference but yes you have more power and shield. In M1's hunter and Viking have 3 speed difference (hunter being faster again), so that much more speed is worth it. :)

Viking is stronger but hunter is better choice if you are a good driver as you shoot as it goes faster than Viking and is all around good choice