Just off the top of my head I think something along the lines of:
Sneak Skill 1-24 - No effect, you just stumble around in the dark.
Sneak Skill 25-49 - You are more aware of your surroundings while sneaking, but you have to focus. If sneaking and not moving then nighteye kicks in after about 5 seconds and goes away if you move.
Sneak Skill 50-74 - Same as above but without the 5 second wait.
Sneak Skill 75-99 - You now have automatic nighteye while sneaking moving slowly.
Sneak Skill 100+ - Nighteye always active while in sneak mode.
I would also like to see the players sneak skill effect how much ambient light is necessary for nighteye to kick in, but I don't know how possible that would be.
So, Has anyone else thought of this?
...Made a mod like it?
... ...Started to make it?
... ... ...Be willing to answer stupid question I have about how to make it myself?