¿Why not Nerfing spitfire And reworking arena's weapons cost +other stuff?

Spitfire has almost the same dmg as the flatline with more mag and almost the same rate of fire and lack of recoil.

Increase it's cost in Arenas and lower the cost of "hard to use weapons" or maybe the ones with low pick rate. 

Weapons like wingman shouldn't be that expensieve 'cause only good players are able to get all the cost out of it. Skill should be rewarded. 

Easy weapons should be expensieve (for example R301 it's the highest of all rifles) and hard weapons should be way more cheaper. 

I think many players suggested to add objetives to arena modes. Maybe defend a console for a while and then you can choose when the zone is closing, the classic boring "bomb" mode or maybe hold to charge a portal to escape, idk.
In terms of arena maps i think the map "Party Crasher" and "Phase Runner" should be reworked in their middle section to add to add more cover. 

Thanks and sorry for my grammar :D <3