Question: Are my cells scattered throughout due to the decentralized nature? Also, what's the gray area to the south?

Reposted Character data includes:
Name: Jakob the Vein
Appearance: A middle-aged man dressed in a patchwork mockery of a governor's attire, Jakob's most distinctive feature are the prominent pulsing veins on his temples. He is naturally bald, with what remainded of his hair being shaven off.
Race: Water Caste Gue'la
Personal Gear: Power Sword, modified Pulse Rifle adjusted to a more compact size (Pistol,) and a remote for the drones. See below for that last one.

Warband: Jakob keeps tabs on a score of rebel militia cells, armed with stolen IG gear and using patchwork armor. The total headcount of the cells are a little under two thousand, including the better-equipped cell leaders that are in regular contact with Jakob, being the only ones who know about him or his loyalties. One of his more successful cells recently acquired a pair of Basilisks, while another managed to salvage a Rhino transport. Jakob doesn't have any apparent personal attendents, but he has a sniper drone and multiple shield drones in his hideout, along with about a dozen Gue'la Stealth Warriors.

Bio: Jakob was once a Sergeant in the Imperial Guard. When his unit was surrounded by Tau forces, he had his men surrender peacefully. He was open minded and articulate, which helped him to become a functional member of the Caste system. Due to his military background, and more importantly being the local species, Jakob was selected to lead a stealth force in infiltrating a divided hive world and help acquire it for the Greater Good. Through speaking with the leaders of minor cells, and in more regretable cases tactical assassination, Jakob has gotten the loyalty of various gangs and rebel interests that oppose both the Imperium and the forces of Chaos.