So we should have a lvl 4 gen. But you don't upgrade it, you find it in the map. There should be 1 or 2 lvl 4 gens that are hidden in VERY secret places which will be hard to notice. The lvl 4 gens are not found in hardcore. Lvl 4 gens should produce 1 diamond per 1.5 sec.And it doesn't increase camping cause you don't find it find it at your base, can't upgrade it and probably many people will target it.