Any possibility you could post either the entire block of new nicknames, or at least a sampling that you think is representative? It might be a bit much for the actual description, but perhaps a separate thread. Would be useful for determining what kind of direction you went with them, and whether our tastes align. :)

I'll just name a few that sound good, of course I have no idea whats in there already.
Tager
Genome
S.O.B
Proxy.
Mailman.
Kitsune.
Macauhitl
Malachite
Mithril
Adamantine
Prophet
Preist.
Thats all I got, hopefully some of these will make it in.

Some that I like the sound of:

Alcatraz
Astral
Bandit
Banquo
Cadence
Chapel
Chemist
Claymore
Crown
Deacon
Devil
Druid
Goblin
Grinch
Immortal
Ironclad
Jacket
Jester
Pagan
Panther
Scarecrow
Scotch
Surgeon

Looking at it you can see I favour a few starting letters...
Not sure how many are in the game already, but I tried to avoid ones in your mod.

I got more
Lazward
Macdonwald
Macbeth.
Khepri
Cheshire
Chimera
Jiang-Shi
Daimyo
Andromeda
Milky
Ishtar
Sekhmet
Serqet
Anhur
Frey
Freya
Skadi
Sol
Mani
Hestia

It'd be great if there was a way to make the game select a new name if you don't like the first one.

Two off the top of my head:
Reaper
Lightning

And a whole bunch of ancient heroes:
Achilles
Ajax
Odysseus
Agamemnon
Leonidas

if whould be nice if we could delete nickname from characterpool. It is fun to see how frends get stupid nicname

Archangel
Gunny (grenadiers only)
Icarus
Athena
Sarge

Some suggestions, after looking over the list:

-Arminius
-Banshee
-Dullahan
-Golem
-Gojira
-Gozer
-Leonidas
-Siren
-Valkyrie

It may require the longer names mod, but my current favorite soldier's nickname is "Spray and Pray." He couldn't shoot the broadside of a barn but he's mostly there to lob grenades and draw fire.
Others I have been enjoying (some are less than serious, be warned):
-Poltergeist
-Geezer
-Doobie
-Wicked Witch
-Chopshop
-Dakka Dakka
-Riptide
-Alley Oop
-Lovebug
-Houdini

Sniper:

-Cupid
-Camper
-King (male)


Specialist:

-Sysadmin
-All Trades
-Father (male)
-Priest (male)
-Artoo
-Bishop
-D20


Ranger:

-Queen (female)
-Knight

Grenadier:

-Fat Man
-Little Boy


General:

-Virgo
-Taurus
-(the other 10 zodiac signs)



And, do you go for pop culture?

Because if so;

Ranger:
-Strider

Psi:
-Muggleborn

It's been too long since I've watched it, so I don't recall them off the top of my head, but how about Specialist nicknames from Hackers? (Seeing as they already have a tendency to shout, "Hack the planet!")

Just wanted to drop a note to thank everyone who has posted in this thread, some really great ideas! At the moment I'm just kinda stockpiling things away until we get a bit more news about the new class being added with the Shen's Last Gift update. Once I have a better idea as to the theme of that class I can start making more informed decisions about what I want to do with these.

Thanks again.

A bit of an unconventional suggestion: more mission names.

Here are some Nicknames used in the German Militaries (Old, Modern and Eastern)

Landser ('Landsknecht' Medieval Footsoldier)
Adler (Eagle)
Abwehr (lit. Defence / 3rd Reich Military Intelligence Department)
Berg (Mountain)
Sturm (Storm)
Blitz (Flash)
Donner (Thunder)
Brummbär (Growling Bear)
Hummel (Bumblebee)
Wespe (Wasp)
Marder (Marten?)
Wiesel (Weasel)
Fuchs (Fox)
Panzerfaust (Tank Fist / Anti-Tank Weapon)
Fähnrich (Officer in Training)
Feldjäger (Military Police)
Jäger (Hunter / Army Ranger / Special Forces for rough terrain)
Junker (Military Aristocracy)
Kanonier (Artillery Crewman)
Grenadier (Grenade Thrower / Heavy Infantry)
Kampfgeist (Fighting Spirit)
Kradschütze (Motorcycle Gunner)
Kraut (Kraut?)
Grenzer (Communist Border Guard)
Stasi (Communist Intelligence Agency in East Germany)
Tachanka (borrowed Russian term for Maschinegun Jeeps or MGs mounted on tactical Mules)
Füsilier (Napoleonic Rifleman)
Chekist (Member of the Communist Secret Police)
Motsie (East German Motorised Rifleman)
Kübel (Bucket)