Spitfire doesnt belong in this game

then they should just lower the base magazine size, reduce some of the damage and increase the fire rate a little.

Lets say

23 bullets - Base

Each tier mag gives 3 extra bullets. Up to 35

Increase fire rate to 700RPM

Slower fire rate than R301 but faster than Flatline.

And damage lowered to 15

1 Damage higher than R301

That way its not just hold down left click and walk forward, if you miss your shots the mag empties faster, deals less damage and not as much room for error.

I have no idea what the time to kill would be this is just assuming its just better, sounds more fair in my head. will obviously need more fine tuning.