Comparing other games like Black Ops 3 or Battlefront 2 I’d say is unfair. In games like those, you’re paying a substantial amount of money for a in-game weapon that offers extremely different options and can practically win the game for you. Just look at the Peacemaker in Black Ops 2? But even on some of those games, those DLC weapons/bonuses are also just marginal differences which don’t really have an effect in the long run.
The Hammerhead is practically comparable to the other Assault Rifles and the Grenade Launcher included, although impact and does provide a minimal damage boost if it hits, is just a glorified A.I wiper. Minimal Increases in stats don’t win games, at least I don’t hope so.