The Carbon Roller is a variant of Splat Roller. It has significantly greater speed than any of the other rollers currently available, but lacks in power. This weapon requires you to hit an enemy inkling twice before splatting them, rather than once like the other roller weapons. When you fling ink onto vertical surfaces, the weapon only covers a small portion of the wall.
Weapon Quote
"The Carbon Roller is a lightweight roller built with low-density parts for increased handling! Soften up the foe with Burst Bombs while you ink the ground and prepare to unleash the Inkzooka! Want to use a roller but don't like feeling weighed down? Now you can have your cake and eat it too!"
Strategy
Rollers, while not extremely effective at skirmishes, make up for it with incredible support. They are the best weapon for trying to sneak through enemy lines to get back turf that's missing, and help keep the player's team's turf maximized.
The Carbon Roller is faster than the standard Splat Roller, making it great for covering even more ground with a roller than ever before. Thanks to the increased speed, it even makes Chargers have a much more difficult time pinning down a shot against them. You'll still want to focus more on covering ground instead of skirmishing, but you'll have an easier time dodging shots, which is a huge bonus. If you do get caught in close combat, though, your best option is to fling ink; if you manage to get a good hit, it should take out your opponent. It's easiest to take your opponent out when they don't notice you coming, so if they see you, it's best to run away instead of trying to engage. The Burst Bomb sub is useful for little more than getting damage on those players hiding around a corner and checking to see if anybody is hiding in a patch of ink, but still effective for that with a bit more range than your ink fling. Instead of flinging ink onto walls with your roller, the best thing to do is to use your Burst Bombs. Finally, the set also comes with the Inkzooka for those moments when you're just out of reach of an enemy. If an enemy has taken an area, use the Inkzooka to clear it out and make space for your team to charge back in.
Tips for facing each weapon type
Shooter-type weapons will be difficult, because you have less range than before, and it takes more than one "bump" into an opponent to actually take them out. You can actually take enemies out with an ink fling fairly easily now though. However, if you don't feel comfortable with facing an enemy, or aren't close enough, you do boast increased movement speed while rolling, thanks to the light weight of carbon. Definitely use this to your advantage. If you're still uncertain, throw a Burst Bomb or two to deter them from chasing. The Inkzooka can also be used to face longer ranged opponents here, if it's available.
Roller-type weapons actually have a slight advantage over you. In a head to head, their roller out rolls yours - it doesn't actually take an enemy out immediately when you roll over them. Your best option here is to run away, because they'll never catch you. Burst Bomb has better range than ink fling, or if you're confident enough, ink fling can definitely take an enemy out in one good hit.
Charger-type weapons will be slightly easier to deal with now, if only because you're a tad harder to hit. Still, the best choice is to stay out of their sights until the Inkzooka is up and ready to take them down. If it comes down to it, a zig-zag pattern up toward a Charger player can throw them off, where it only takes a single solid ink fling to send them to their spawn.
Beneficial Abilities
Bomb Sniffer is possibly a staple for all Roller weapons, since Ink Mines are much less of a problem with this. Opening Gambit can give you a nice movement boost early to get the advantage for your team. Because you'll be more reliant on the ink fling than rolling over people, a couple Damage Up boosts could make the difference in picking up the kill or just barely leaving them alive, if you misjudge the aim a bit. Comeback can also be used effectively, since it gives so many helpful stats for a short time.
Trivia
The Carbon Roller was on June 26th (27th in EU), 2015 along with the Custom Dual Squelcher.