Octocommander
From Inkipedia, the Splatoon wiki
Octocommandoes are a variant of Octosniper in Splatoon 2 They wear shades and have black parts on their bodies, whick makes them easy to spot.
Octocommandoes are stationary like Octosniper, but instead of a Splat Charger, Octocommandoes use a Heavy Splatling. The mini gun has a very high rate of fire, but the Octocommando takes a break each time they fire it, giving the player a chance to safely kill them.