What diamond badges are you still missing?
Hmm... Let's see...
Technician, (I don't think I'll ever get that one, considering the ridiculous number of nano mods I would need; I think the best way to do it would be to play Ao100 as a Technician, get Scavenger trait, and scavenge any uniques I find, hoping to get nano mods)
EDIT: Oh yeah! I forgot about schematics in Hell's Armory! As long as it can give you Master Assembly schematics, I guess it's doable. Just play a bunch of games going up to the Armory, and I suppose you'll get it eventually.Armorer, (I'm pretty close; just three uniques left!)
Heroic, (Some of those secret medals are crazier than the Diamond badges! I don't think I'll be getting that one)
UAC, (Considering my success with Speedrunner Diamond, this one is very possible!)
Marksman, (Considering my success with Demonic Diamond, I'm tempted to just forget the pistol and build up my fists and try to win it that way) :)
Eagerness, (I'm finding this one pretty tough; I guess I rely pretty heavily on med-packs!)
Inquisitor, (I had a fairly successful Survivalist build in this that I intend to try again later)
Destroyer, (In this version, at least; I achieved it once back in 0.9.9.2)
Centurial, (I have an Ao100 game running right now that might turn into this; :) I also achieved it in 0.9.9.3)
Everyman, (Shottyhead worked well for my Masochist Diamond, so I've tried it with this too, so far without success)
Reaper, (Ugh! Reaper Platinum was hard enough! I don't see myself getting this one) :|
Scavenger, (That would need so much luck that I don't see myself trying for it any time soon)
Arena, (Not in this version; I got it in 0.9.9.2; if I did get it, it would be a good way to help achieve Scavenger)
I wonder what bronze and silver badges Tormise is missing :)
I'm running a game right now, so I can't check, but if I recall correctly...
Bronze: Inquisitor and Eagerness (Angel of Purity and Impatience are my least favourite challenges, I guess) :P
Silver: Inquisitor, Eagerness, Marksman, and Destroyer (I just never got around to completing Marksmanship or Max Carnage)