"A customized Blaster. The sub weapon lets you track down your opponents so you can take them down with the wide range Blaster shot."
Shooters are the backbone of (almost) any good team. They're versatile and varied with each weapon, and cover plenty of ground, as well as apply more pressure to the enemy team than either Charger or Roller weapons.
The Custom Blaster is, like the Blaster, unrivaled in splatting power. It's able to immediately take out a player with a direct hit, as well as be scary even if not, thanks to a small explosive burst at the end that can finish an enemy with two hits. The differences start with the sub and special though, where the Point Sensor comes allows you to check corners even safer than before, as well as enemy pools of ink before you dive headlong into the fray. Finally, when all else fails, the Bubbler will make sure you see through whatever skirmish you've found yourself in. At least for five seconds.
Tips for facing each weapon type
Shooter-type weapons have an advantage, due to the slow rate of fire and your low range. Your best bet here is to back up and threaten them with your own shots while backpedaling, to deter them from following. If you're within range, you have a much better chance, but only when you hit. Use the Point Sensor to keep yourself out of troublesome situations. Bubbler should be saved for such encounters.
Roller-type weapons are do-or-die, though technically you have the slight advantage thanks to you actually having range. Backpedal as they chase you, or swim to the side if they try to fling ink.
Charger-type weapons have a fair advantage against you, thanks to being such a long range weapon. However, if you can sneak up on one, they're done for. If they do spot you, swim toward these players zig-zag while making a path for yourself with each shot, until you're close enough to hit them. Just be wary of when you're in their sights. Bubbler can be used here to scare them off, while you advance and take more turf.