All classes start with 50 green armor unless otherwise noted.
The fists are common to all classes, no exceptions.
Movement speed, jumping, health and size are identical across the board.
All of the classes except for Standard, Survivor, Ammo Carrier and Classic gain a unique weapon that cannot be dropped or used by other classes.
There is a Debug Guy class that is available, but you have to jump through a couple hoops to use him. He starts with full regular ammo and all the class-exclusive weapons. Obviously...using him is cheating.

-Standard: (this is the loadout you get without Classy Bastards loaded in.)
Pistol
Shotgun
bullet x50
shell x4

-Classic (Purist): (Classic DOOM pistol start, for you Doomworld types.)
Pistol
bullet x50
No armor

-Commando: (Upgrades all around, right?)
Carbine (a powerful, accurate but ammo-hungry mini-rifle that fires AP bullets)
Knife
bullet x50
frag x2
No armor

-Scout: (Run and gun and get the hell outta there.)
Scattergun (a fast-firing but weak shotgun with a very tight spread)
shell x15
haste sphere x1
no armor

-Demolitionist: (Blow shit up.)
Pistol
Frag Launcher (a fragmentation-rocket launcher. Trades impact damage, blast power and radius for the addition of shrapnel.)
rocket x4
bullet x35

-Hunter: (12-gauge justice.)
Hunting Shotgun (a scoped shotgun that fires slug rounds. Trades damage for precision.)
shell x12

-Marksman: (Accuracy above all.)
Laser Pistol
DMR (A semi-auto rifle with a low-mag scope. Trades damage for penetration power and RoF.)
rifle round x18

-Technician: (Pew pew!)
Ion Rifle (a prototype IonRipper that...well, rips, but it's not too powerful or accurate)
Blaster

-Big Shot: (For the gambler. Make that one shot count or you're in trouble.)
Übergewehr (a powerful Argent plasma cannon unrivaled in raw damage. Uses a lot of rare ammo.)
Burst Pistol
Argent x25
bullet x9
75 yellow armor

-Assassin: (Like it quiet? Here's your guy.)
Knife
Black Ops Rifle (A silenced assault rifle. Slower and less powerful than its unsilenced cousin.)
bullet x40
blursphere x1

-Berserker: (RIP AND TEAR)
Chainfist (A small, self-powered chainsaw gauntlet that strikes up to six times a swing. Decently-powerful, and is the only motorized melee weapon to get a buff from berserk packs.)
berserk pack x1

-Sniper: (WANKAH!)
Anti-Materiel Rifle (a VERY powerful explosive sniper with high zoom, high recoil and a SLOW RoF)
Suppressor
bullet x25
grenade x3

-Handyman: (All this guy needs is a HAMR to go with those nails.)
Penetrator (a powerful, but rather slow "heavy nailgun". Inaccurate as hell, but good on ammo.)
Nail Pistol
nail x40

-Grunt: (Straight from the front lines.)
PDW (an auto carbine that gains RoF versus the machinegun, but fires fairly-weak "duplex" rounds.)
bullet x70
75 yellow armor

-Gunner: (DAKKADAKKADAKKA)
Gatling Gun (Performs similarly to the vanilla chaingun, but with the power and inaccuracy of ZX's standard chaingun.)
bullet x75

-Spec Ops: (Start strong, but struggle later.)
Plasma Shotgun (Powerful pump-action spread of plasma bolts.)
cell x35
power armor x1
No normal armor

-Medic: ("EXCUSE ME. I'M IN NEED OF MEDICAL ATTENTION.")
Machine Pistol
Knife
bullet x40
field medikit x2
armor kit x2
150 yellow armor

-Cryotech: (One cool cat)
Freezethrower (a weaker but longer-ranged icy "flamethrower")
Nail pistol
core x25
nail x20
75 yellow armor

-Shock Troop: (Do you like lasers? WELL HAVE I GOT A CLASS FOR YOU)
Scatter Laser (a laser shotgun with some penetrative ability and a tight spread)
Laser Pistol
cell x52

-Mercenary: (Geneva Convention? What Geneva Convention?)
Pulverizer (an inaccurate ETF machinegun)
Silencer Pistol
nail x30
bullet x20
100 green armor

-Pyro: (MMM MMM MMMMMMPH)
Flamethrower
Inferno Shotgun (a sawn-off, lever-action "mare's leg" double shotgun tuned for fire ammo and one-handed use)
cell x70
shell x6

-Brawler: (Up close and GORY)
Tactical Shotgun (a silenced pump shotgun)
Burst Pistol
shell x8
bullet x30

-Gunslinger: (He's dirty, and hairy.)
Revolver (a custom revolver that turns rifle rounds into huge magnum slugs)
rifle round x18 + 6 rounds in the cylinder

-Veteran: (He's seen some SHIT)
Prototype Plasma Rifle (an aging but reliable, experimental plasma rifle)
cell x40

-Cowboy: (it's hiiiiiiigh noon, hellspawn)
Lever-Action Rifle (a powerful, accurate but greedy lever-action rifle)
rifle round x20
75 yellow armor

-Assault: (Run, gun, get out alive)
EMG Storm (a burst-firing, double-barreled EMG rifle that's very shotgun-like)
Nail Pistol
core x18
nail x20

-Ammo Carrier (Ammo, ammo everywhere and not a gun to shoot)
Knife
ammo forge x1
bullet x100
shell x25
nail x80
rifle round x40
rocket x15
grenade x15
cell x125
slug x20
core x25
Argent x25
frag x2
150 yellow armor

-Scientist (From lab assistant to terror machine)
AFG
Pistol
cell x30
bullet x20

-Archer (That bow is poison!)
Crossbow
nail x50

-Survivor (Two fists and the truth)
SoulSphere
no weapons, ammo or armor