Confirmed Weapons list in Battlefield 3

Confirmed Weapons in BF3

Assault Rifles:
M16A4
M16A3
M416
AK-74M
AEK-971
AS VAL
G3
KH2002
F2000
AN-94

Carbines:
M4A1
AKS-74U
G36C
SCAR-H CQC
A-91
SG 553LB
Magpul PDR

Sub Machine Guns:
MP7 PDW
P90 PDW
P90TR
UMP-45
PP2000

Shotguns:
DAO-12
M1014
870 Combat Shotgun
USAS-12
Saiga 20K

Light Machine Guns:
M249
M240
Pecheneg
RPK
Type 88 LMG
M27 IAR
M60E4

Sniper Rifles:
Mk.11 Mod 0
M98B
M40A5
M82A3
SVD
SV98

Battle Rifles:
SKS
M39

Handguns:
Beretta M9
MP443 Grach
Glock 17
M1911
MP412 REX
Glock 18
M93 Raffica
T44

Launchers:
SMAW
AT-4
RPG-7V2
FIM-92 Stinger
FGM-148 Javelin
SA-18 IGLA
Grenade Launcher

Optics:
M145
RDS Reflex Sight
Kobra
Holographic
PKA-S
ACOG
PSO-1
PK-A
IRNV
PKS-07
8x Standard Sniper Scope
12x Ballistic Sniper Scope

Attachments:
Foregrip
Bipod
Heavy Barrel
Suppressor
Tactical Flashlight
Laser Sight
Flash Suppressor
Straight Pull Bolt
M320
-40mm Grenades
Buckshot
Smoke Grenade
-M26 MASS
12 gauge
Flechettes
Frag Round
Solid Slugs

Equipment:
Knife
M67 Fragmentation Grenades
M18 Smoke Grenades
Medic Kit
Defibrillators
M15 Anti Tank Mine
Welding Tool
EOD BOT
60mm Mortar
Ammo Box
C4 Explosives
M18 Claymore Mines
UG Sensors
Radio Beacon
SOFLAM
MAV Micro UAV

Specs:
Sprint Boost
Squad Sprint Boost
Flak Vest
Squad Flak Vests
EOD EXPL Vest
Squad EOD EXPL Vest
Suppression Reduction
Squad Suppression Reduction
Marksman Training
Squad Marksman Training
Extra Grenades
Squad Extra Grenades
Ammo Boost
Squad Ammo Boost

Vehicles:
-Fast Transport
Growler ITV
VDV Buggy
-Armored Transport
Humvee
G3937 Vodnik
-Infantry Fighting Vehicles
LAV-25
BMP-2M
-Mobile Anti Air
LAV-AD
9K22 Tunguska-M
-Main Battle Tanks
M1A2 Abrams
T-90A Heavy Battle Tank
-Scout Helicopters
AH-6J Littlebird
Z-11 W
-Transport Helicopters
UH-1Y Venom
KA-60 Kasatka
-Attack Helicopters
AH-1Z Viper
Mi-28 Havoc
-Fighter Jets
F/A-18E Super Hornet
SU-35BM Flanker
-Attack Jets
A-10 Thunderbolt II
SU-39
-Naval Transport
RHIB
-Amphibious Assault
AAVP-7A1

Vehicle Specs:
Coaxial MG
Coaxial HMG
Canister Shells
Guided Shells
Zoom Optics
Thermal Optics
IR Smoke
Reactive Armor
Maintenance
Belt Speed
Thermal Camo
Auto Loader
Proximity Scan
CITV Station
ATGM Launcher
APFSDS-T Shells
Guided Rockets
Air Radar
Heatseekers
Laser Painter
TV Missile
IR Flares
Extinguisher
ECM Jammer
Rocket Guidance System
Below Radar
Guided Missile
Beam Scanning

MW3 CANT TOUCH THIS ....

New multiplayer modes (Rush, TDM)

64 Player Multiplayer (PC)

24 Player Multiplayer (Console)

Full SinglePlayer Campaign

Co-Op Campaign

Air, Land and Sea Vehicles

USMC (SP & MP)

PLR (SP & MP*)

Russian Spetsnaz (SP* & MP)

Prone

Not compatible with DX9

Fight in the US, Midle East and Europe

Collector`s Edition*

Massive Destruction

Mount your weapon to most terrain

Back to Karkand Expansion (details at BF3 homepage)

Upgraded weapon & FOV system

Deeper bullet drop system than BC2

Drag wounded soldiers in SP only

Better optimized for x64

More unlocks/content than BC2

Assault, Recon, Support, Engineer

Battle Recorder*

Character Customization

Kill Cam*

No mod tools on release

Dedicated Servers

Selective Fire

Blood Effects

Selectable Grenades

Suppression Effect

Conquest Returns

Health Bar

Squad Leader

4-man Squads

Equipable & Quick Knife

Sniper Scope Sway

Customizable DogTags

That's incredible how much content is in this game.