Settlement Management Expanded

The immediate target of the Remnant was not Gravestone. Sure Zane had been marked as an "Enemy of America" for his acts against the Remnant's scouts. But the reality was that the Remnant was more interested in taking on the challenge of reconquering the immediate areas just outside of their bunker complexes. Of which they had many spread across the nation. 

And because of this, it would be a long while before Zane came into contact with their forces, or even really learned that they were targeting him. Instead, Zane was busy with other matters. Growth in Gravestone was rather large. Not only was Zane able to build superior defenses around their held territory, via the use of the system's settlement building feature.

But he unlocked some new blueprints that helped expand the settlement's capabilities. While the Stygian Iron Works and the Grim Forge were vital for forging new equipment. There was still a matter of lacking proper agricultural equipment.