This is from the Treyarch forums, this is what is known, more can be added later ( guns etc.. ).
The asterisk (*) indicates that there isn't 100% confirmation, but there is evidence for the speculation.
Primary Weapons
Assault Rifles
AK47 - Fully Automatic Russian Rifle (1000 CoDPoints)
AUG - Fully Automatic Austrian Bullpup Rifle with 30 Round Magazine (1000 CoDPoints)
Commando - Fully Automatic American Carbine with 30 Round Magazine (1000 CoDPoints)
Enfield - Fully Automatic British Bullpup Rifle (1000 CoDPoints)
FAMAS - Fully Automatic French Prototype Rifle with 30 Round Magazine (1000 CoDPoints)
FN FAL - Semi-Automatic Belgian Rifle (1000 CoDPoints)
G11 - 3 Round Burst German Prototype Rifle with 48 Round Magazine (Classified)
Galil - Fully Automatic Israeli Rifle (1000 CoDPoints)
M14 - Semi-Automatic American Battle Rifle with 20 Round Magazine (1000 CoDPoints)
M16 - 3 Round Burst American Rifle with 30 Round Magazine
Sub-Machine Guns
AK74u - Fully Automatic Russian Carbine with 30 Round Magazine
MAC11 - American Machine Pistol
MP5K - Fully Automatic German Prototype SMG with 30 Round Magazine
MPL - German SMG
PM63 - Polish Machine Pistol
Skorpion - Fully Automatic Czechoslovakian Machine Pistol with 20 Round Magazine
Spectre - Fully Automatic Italian SMG with 30 Round Magazine
UZI - Israeli SMG
Light Machine Guns
HK21 - Fully Automatic German LMG with 30 Round Magazine
M60 - Fully Automatic American HMG with 100 Round Magazine
RPK - Fully Automatic Russian LMG based off the AK47
Shotguns
Olympia - Double-Barreled American Shotgun with 2 Rounds
SPAS - Semi-Automatic Italian Shotgun with 8 Rounds
Stakeout/Ithaca - Pump-Action American Shotgun with 4 Rounds
HS-10 - Single Shot American Shotgun with 4 Rounds
Sniper Rifles
Dragunov - Semi-Automatic Russian Rifle with 10 Rounds
L96A1 - Bolt-Action British Sniper Rifle with 5 Rounds
WA2000 - Semi-Automatic German Sniper Rifle with 6 Rounds
Secondary Weapons
Pistols
ASP - Semi-Automatic American Handgun
CZ75 - Semi-Automatic Czech Handgun (750 CoDPoints)
M1911 - Semi-Automatic American Handgun
Makarov - Semi-Automatic Russian Handgun with 8 Rounds
Python - Revolver/American Six-Shooter
Launchers
China Lake - Pump-Action American Grenade Launcher with 2 Projectiles
M72 LAW - American Light Anti-Tank Weapon with 1 Unguided Projectile
RPG-7 - Russian Rocket Propelled Grenade Launcher with 1 Projectile
Strela - Russian Surface-to-Air Missile System
Special
Ballistic Knife - Russian (Spetsnaz) Knife with Detachable Blade as a Fast Firing Projectile
Crossbow - Bow Weapon that Fires Bolts or Similar Projectiles
Special Weapons
Care Packages
Death Machine - Portable Mini-Gun with 499 Rounds
Grim Reaper - M202 "Flash", American Rocket Launcher with 4 Incendiary Rockets
Attachments
Assault Rifle
Extended Magazines - Larger magazines that hold more ammunition than a normal mag (500 CoDPoints)
Dual Mag - Two magazines strapped together to enable faster reloading between them (500 CoDPoints)
ACOG Sight - Enhanced zoom ACOG sight (750 CoDPoints)
Red Dot Sight - Replaces iron sights with a precision red dot sight (750 CoDPoints)
Reflex - Replaces iron sights with a precision reflex sight/red dot scope (750 CoDPoints)
Grip - Front Foregrip that reduces recoil and kick (750 CoDPoints)
Masterkey - An under barrel shotgun attachment (750 CoDPoints)
Flamethrower - An under barrel attachment that shoots flames. Has three gas cartridges (750 CoDPoints)
Infrared Scope - Enhanced zoom infrared scope (1000 CoDPoints)
Grenade Launcher - An under barrel grenade launcher attachment (1000 CoDPoints)
Rapid Fire - Increased Rate of Fire (1000 CoDPoints)
Suppressor - Reduces weapon sound and flash, while also reducing range (1000 CoDPoints)
Dual Wield - Ability to hold this weapon in both hands
Pistols (Python)
Snub Nose - A shorter barrel with more accuracy and slightly less damage (500 CoDPoints)
ACOG Sight - Enhanced zoom ACOG sight (750 CoDPoints)
Speed Reloader - Speed reloader for a revolver (750 CoDPoints)
Dual Wield - Ability to hold this weapon in both hands
Sight Customization
Crosshair Color
Red
Green
Blue
Purple
Teal
Yellow
Orange
Crosshair Shape
Dot - (500 CoDPoints)
Semicircle - (500 CoDPoints)
Line with Dot - (500 CoDPoints)
Circle - (500 CoDPoints)
Smiley - (500 CoDPoints)
Arrows Horizontal - (500 CoDPoints)
Arrows Vertical - (500 CoDPoints)
Arrows with Dot - (500 CoDPoints)
Boxes - (500 CoDPoints)
Burst - (500 CoDPoints)
Circle within a Circle - (500 CoDPoints)
Circle with Dot - (500 CoDPoints)
Circle with Crosshairs - (500 CoDPoints)
Circle with Inner Line
Circle with Outer Line
Circle with Arrows
Circle with Triangles
Outer Crosshairs
Small Crosshairs
Large Crosshairs
Diamond
Diamond Outline
Heart
Radiation
Skull
Square
Square Outline
Star
Three Dots
Treyarch
Triangle
Outer triangles
X
X with Dot
Yin Yang
Camouflages
None - (250 CoDPoints)
Dusty - (250 CoDPoints)
Ice - (250 CoDPoints)
Red - (250 CoDPoints)
Olive - (250 CoDPoints)
Nevada - (250 CoDPoints)
Sahara - (250 CoDPoints)
ERDL - (250 CoDPoints)
Tiger - (250 CoDPoints)
Berlin - (250 CoDPoints)
Warsaw
Siberia
Yukon
Woodland
Flora
Classified
Perks
Tier One (Blue)
Lightweight - Move faster (2000 CoDPoints)
Scavenger - Pick up ammo from fallen enemies. Replenish Lethal Grenades (2000 CoDPoints)
Ghost - Undetectable by the Spy Plane and the Blackbird (2000 CoDPoints)
Flak Jacket - Reduces explosive damage (2000 CoDPoints)
Hardline - Killstreaks require 1 less kill (2000 CoDPoints)
Tier Two (Red)
Hardened - Bullets penetrate better (2000 CoDPoints)
Scout - Hold breath longer (2000 CoDPoints)
Steady Aim - Increased Hip-Fire Accuracy (2000 CoDPoints)
Sleight of Hand - Faster reloads (2000 CoDPoints)
Warlord - Equip two Attachments to your Primary Weapon (2000 CoDPoints)
Tier Three (Green)
Marathon - Longer sprint (2000 CoDPoints)
Ninja - Silent movement (2000 CoDPoints)
Second Chance - Pull out your Pistol before dying (2000 CoDPoints)
Hacker - Ability to detect enemy Equipment and Explosives (2000 CoDPoints)
+Pro - Hack Enemy Equipment and Killstreaks to make them Friendly
Tactical Mask - Reduces the effect of Flash and Concussion Grenades (2000 CoDPoints)
Lethal
Frag Grenade - Cookable Grenade that is affected by physics (1000 CoDPoints)
Semtex - Sticky Grenade that attaches to any surface and detonates shortly later (1000 CoDPoints)
Tomahawk - Throwable Axe that is a One-Hit-Kill and can be picked up to be reused (1000 CoDPoints)
Tactical
Willy Pete - Smoke Grenade (750 CoDPoints)
Concussion x2 - Slows and disorientates the Target. Stuns Equipment and Turrets (750 CoDPoints)
Flashbang x2 - Blinds and Deafens the Target. Stuns Equipment and Turrets (750 CoDPoints)
Nova Gas x2 - Impairs Movement, Blurs Vision, and Causes Damage over Time (750 CoDPoints)
Decoy x2 - Simulates Gunfire and Radar Indicators (750 CoDPoints)
Equipment
Camera Spike - Camera that takes up the Mini-Map. Can be picked up and moved (2000 CoDPoints)
C4 - Two Plastic Explosives that must be detonated manually (2000 CoDPoints)
Tactical Insertion - Marker that determines your next spawn point (2500 CoDPoints)
Jammer - Marker that disrupts enemy Mini-Map when in proximity (2500 CoDPoints)
Motion Sensor - Mine that detects enemy locations when in proximity (3000 CoDPoints)
Claymore - Explosive Mine that is triggered by movement. Can be picked up and moved (3000 CoDPoints)
Killstreaks/Vehicles
Spy Plane - 3 Killstreak - Shows enemies on the Mini-Map. Can be shot down
RC-XD - 3 Killstreak - Remote control car strapped with explosives. 30 second time limit (1200 CoDPoints)
Counter Spy Plane - 4 Killstreak - Temporarily disables enemy Mini-Map (1600 CoDPoints)
SAM Turret - 4 Killstreak - Airdrop a placeable SAM Turret that destroys aircraft (1600 CoDPoints)
Care Package - 5 Killstreak - Airdrop a random killstreak or ammo crate
Napalm Strike - 5 Killstreak - Airstrike that covers an area in napalm (2400 CoDPoints)
Sentry Gun - 6 Killstreak - Airdrop a placeable Sentry Gun (3200 CoDPoints)
Mortar Team - 6 Killstreak - Target three locations to be bombarded with Mortar Strikes (3200 CoDPoints)
Attack Helicopter - 7 Killstreak - Call in a support helicopter
Valkyrie Rockets - 7 Killstreak - Launcher with two remote controlled rockets (4000 CoDPoints)
BlackBird - 8 Killstreak - Shows locations and directions of all players. Can't be shot down (4500 CoDPoints)
Rolling Thunder - 8 Killstreak - Carpet Bomb (4500 CoDPoints)
Chopper Gunner - 9 Killstreak - Man a chain gun on the side door of a helicopter (5000 CoDPoints)
Attack Dogs - 11 Killstreak - Call in the Dogs of War that can kill in one bite (5000 CoDPoints)
Gunship - 11 Killstreak - Pilot a helicopter complete with rockets and machine guns (6000 CoDPoints)
Game Modes
Team Deathmatch
Hardcore Team Deathmatch
Free-For-All
Search & Destroy
Headquarters
Demolition
Capture the Flag
Domination
BareBones
Gun Game
Stick and Stones
SharpShooter
One in the Chamber
Maps
Launch
Summit
Cracked
Radiation
Slaughter House
To see nearly complete overhead pictures of Launch and Summit, look at these threads:
http://callofduty.com/board/viewtopic.php?f=70&t=258136
http://callofduty.com/board/viewtopic.php?f=70&t=260109
Factions
Black Ops
Spetsnaz
NVA
SOG
Tropas
In-Game Bonuses
Avenger - Kill an Enemy Who Has Just Killed Your Teammate (+50xp)
Backstabber - Knife an Enemy in the Back (+50xp)
Double Kill - Kill Two Enemies Simultaneously (+50xp)
Headshot - Get a Kill by Headshot (+50xp)
Longshot - Get a Kill at Distance (+50xp)
One Shot One Kill - Kill an Enemy with a Sniper in One Shot (+50xp)
Payback - Kill the Enemy Who Last Killed You (+50xp)
Rescuer - Kill an Enemy Who Has Injured Your Teammate(+50xp)
Skewer - Kill an Enemy with the Ballistic Knife (+50xp)
Buzzkill - Kill an Enemy One Kill Before a Killstreak (+100xp)
Comeback - Get a Kill after a Deathstreak (+100xp)
First Blood - First Kill of the Match (+100xp)
Challenges
Challenge: 5 M16 Kills - Get 5 kills with the M16 (+250xp)
Challenge: 10 Knife Kills - Get 10 kills with knife (+250xp)
Challenge: 10 M16 Kills - Get 10 kills with the M16 (+350xp)
Challenge: 1 Hour Played - Play online for 1 hour (+500xp)
Penetration Kills - (+500xp)
The Short Cut - (+750xp)
Challenge: 25 MP5K Kills - Get 25 kills with the MP5K (+1000xp)
Perfect Accuracy: Shotgun - Fire all rounds from a Shotgun without missing (+2500xp)
Steady Aim: Sprint Kill - (+2500xp)
MVP Kills - (+2500xp)
Hardline Pro 1: 10 Killstreak - Acquire a 10 Killstreak
Miscellaneous
- Players can go directly from sprint to prone by diving. While diving, players cannot fire their weapon, and then will have to recuperate after landing.
- Players will receive three spare magazines rather than the standard two spare magazines.
- Players will receive in-game updates about their friends and what they have done.
- Gore will not be featured in Multiplayer
- Matchmaking will feature a Local Search ability such as the one in the Xbox 360 version of CoD:WaW.
- The highest level is 50, and there are at least five Prestiges
- The Mini-Map will features a grid system to enable easier callouts.
- Objective Markers will fade out/away when the player is looking/aiming towards them.
- The Kill-Feed will use solid text unlike the transparent text featured in MW2.
- The Teaser Trailer may have been recorded in the Theater Mode using two different players' games.
- For any overpowered concerns
http://callofduty.com/board/viewtopic.php?f=70&t=259838