I multiplied the LOD of props and the environments by 4 times their original value, resulting in FAR less pop-in. I also modified the Texture memory value, upping it from 2048 to 4096, it may not do anything but it seems to allow for a maximum texture size of 4096 X 4096.

Enjoy the extended LOD and Texture Budgets!!!

EDIT: For clarification, this affects the mesh details in the distance, so almost everything is loaded in, the vegetation seems to be a different value. So when using the unlimited grapple hook mod, you can zip to literally any spot on the map since it is loaded in.

1. drop folder in Just Cause 3 directory
2. Benefit