I accidentally posted this on the general discussion forum, but would probably get more answers here. Has anyone finished them all or know of anyone that has? I just finished the phaeton gunner/vehicle mastery one and have arena mastery left.
I think Sin Shoot2Kill has completed all of them, but I’m not 100% sure on that. As for me, I don’t have them all completed and I probably never will. I still have to get Warden kills, destroy Mongeese and Mantises, get kills with the gungoose, clambers, and lots of gamemodes. I can max out some of those, but others like the gungoose kills and gamemodes I will simply never finish.