In my opinion this is the least used marksman rifle in the entire game. Its easy over shadowed by Maverick's other rifle the M4 and even every other marksman rifle in the game. With its low damage and severely low magazine size, its only one point of damage better than Blackbeard's SR-25 and two points of damage better than Dokkaebi's Mk 14 EBR.
To give the fighting chance for Maverick's marksman rifle and make it usable i would suggest either a damage buff since its supposed to be a .50 caliber or a magazine size increase. Preferably the damage in my opinion, perhaps increase the damage to more like the 417 (Twitch's marksman rifle).