New endless mission reward setup

[Meneliki]

Just wanted to say I like the way it is now. Kinda like the way it used to be. Except you get to pick. So it's actually better now than it used to be. 

So yeah. GJ, DE. +1. ty for the change.

{M}

[Magnar21]

The scaling reward helps compensate for the increased difficulty. Normal survival nodes still need an increase, but this helps.