I have never felt so useless as I have with the Carbon Roller. Can't run away, can't take on distance, can't kill in one shot. You have to stack damage ups on it, which is great for close ups, but all a splatter shot or above have to do is aim in your direction and you're toast. I saw Daboss using them, but it also looked like he was really choosing his battles based on his KD, but with randoms if you're on the losing side, you're almost fucked constantly as you can't even really poke without losing enough ammo to get away. End up trading almost every time unless you just sneak everywhere, which isn't really possible with some of these maps, especially when you have to drop ninja for something to make your weapon useful.
Trying different gear, but man is this thing disheartening at the moment.