After messing around with the settings and can confirm they do effect the game and change and work. However they seem to do nothing for me, becuase there is an invisible mist or dust that means I am unable to see anything past1km doesn't matter how high I set the settings. And I stuck them to over 2k (10x higher than they was before) and it did nothing!
e_view_dist_custom_ratio also does not work. It will not let me change this value to anything, it's always stuck on 100.
Also when running the server (Lan self hosted for testing) the dust storms and fog etc etc is about 100-200m always from mech, thus you cannot see anything. This is what it is like in a normal game just at 1km ish instead.
This is really irritating me now! It's defiently not the draw distance thats effecting me, but some other factor.
*Edit* On another note if I do not zoom, I cannot see past about 500m, mechs and stuff just tend to go invisible.