Untested, probably will work. As long as Proficiency classes and GTS upgrades work, this should work.

LWOTC?

They have been uploaded!

@Viper
There were some minor edits I did, most aren't worth mentioning. There were a few that you might want to change in your mods that I found.
-They all say Update 1, 2, 3 that give Mastery 2, 3, 4, except for Heavy Gunner. It says Update 1, 2, 3 gives Mastery 1, 2, 3 (which is incorrect).
-The Psi Priest fire protection says it reduces damage by burning enemies, it should say "from" burning enemies (it reduces damage only to the psi priest, not all damage the burning enemies do)
-Scout: one of the upgrades (I didn't write down which) gives a homing mine, but the "m" is missing in the popup text: "Gain Hoing Mine."

oh... sweet O_O

No need, I'm almost done with getting yours ready for this. :)

This is a neat idea. I never even thought about it. Ill def be implementing this into my classes. Thanks for the idea bro!

Holy hell thats great! I was always thinking how annoying it is and lookin randomly into your workshop I find this gem!

Fixed the partial support for the Support Medic class, the support for the support class is now fully supported. Also added Mr. Cloista's new Drone Pilot class.

good shit. thanks!

You've also introduced me to some new proficiency classes, I did not have the alchemist, the gunslinger or the support officer (I found the keeper class hard to get a lot of value out of). I also recently found Iridar's Bounty Hunter class and holy smokes, probably a little OP but so much fun to play. Anyways thanks again!

You're welcome guys! It was a problem I was frequently having, so I figured other people probably did too.

Finally! This is great! Thank you very much for this mod.

Excellent addition, thank you.