Octocommander
From Inkipedia, the Splatoon wiki
Octocommandoes are enemies in Splatoon 2
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.