Sector 4 is a base that was owned by the EliteSharpShooters, however it was taken over by the Undead.
The admiral commanding this base was Admiral Yurlean, until it was taken over.
It was built in a friendly jungle, many un-violent creatures lived there, until Jolly Roger owned it. It had farms, towns, villages, forts, houses..... but then nothing..... a sad story, yes.