I know that the recent LW2 release has sliders under its options that allow you to crank up the percent chance DLC appearance traits are used, but not other mods you might pull down, I think. That's worth playing with though.

Insofar as my mod: the code that generates soldiers initially is pretty complicated and not well documented; I spent a long time in there when I was trying to figure out where to wire in the needles for my code to work for the Random Appearance mod. Ultimately I wired into the UI itself: when you click the button, the mod is calling the same methods that are called when you click on the buttons yourself. That code was much cleaner and easier to understand, and it got the results I wanted; it also meant my UI mod lived only in the UI, and so it wouldn't conflict with other mods. (The character gen code was deeper inside and would've run into more conflicts. Like, it def would've conflicted with LW if I wired into there.)

I got impatient and wrote a mod for it myself: Rookie Customization Options. Thanks anyways!

haha, hey cool! Nice job. :)