Videos. (will edit this post for every new gameplay video released)

BF3 Gameplay Premier (PC)

http://www.youtube.com/watch?v=wi2tae2PmmU&feature=mfu_in_order&list=UL

BF3 "My Life" trailer(PC)

http://www.youtube.com/watch?v=TfrrAp1blaM&feature=mfu_in_order&list=UL

Frostbite 2.0 trailer (PC/Ps3)

http://www.youtube.com/watch?v=8pNOxynC1Dc&feature=feedu

"Thunder Run" gameplay trailer(PC)

http://www.youtube.com/watch?v=9UwOrl036_A&feature=feedu

Operation Guillotine Teaser (PC)

http://www.youtube.com/watch?v=u5eLbPQt_Pk&feature=feedu

Operation Guillotine trailer(Xbox 360)

http://www.youtube.com/watch?v=AzA4dv0xkzg

99 Problems Teaser (PC)

http://www.youtube.com/watch?v=1rlZ6cvZj1E

99 Problems TV Ad

http://www.youtube.com/watch?v=coOHjF4_apI

Destruction Trailer

http://www.youtube.com/watch?v=XbAl5NIFRGQ

Gamescom Coop presentation (Ps3)

http://www.youtube.com/watch?v=_DInqUOnJ9I

The Fault Line series (PC)

(1) The Bad Part of Town

http://www.youtube.com/watch?v=ekDutunw1mk&feature=relmfu

(2) Good Effect on Target

http://www.youtube.com/watch?v=TBu_tH8muq0&feature=mfu_in_order&list=UL

3) Get That Wire Cut!

http://www.youtube.com/watch?v=DsHIHxYXeLs&feature=relmfu

4) Full Length Trailer

http://www.youtube.com/watch?v=2zw8SmsovJc&feature=relmfu

Multiplayer

Operation Metro multiplayer Gameplay trailer(PC)

http://www.youtube.com/watch?v=aPu7-LtLKmU&feature=feedu

Paris multiplayer Gameplay trailer

http://www.youtube.com/watch?v=XhBjBy5OOFY&feature=player_embedded

Caspian Border Multiplayer gameplay (PC)

http://www.youtube.com/watch?v=NDDfPxF3EFE

Physical Warfare Pack Trailer(PC)

http://www.youtube.com/watch?v=G-ukxgldpOo

there's too many videos out there to have them all in one post, i'll only put the trailers from DICE there.

weapons

Assault

M16a4 M16a3 G3 M416 F2000 AK-74M AN-94 AEK-971 AS VAL KH 2002

Engineer

M4a1 G-36C SCAR-HCQB SG-553LB Aks-74u A-91

Support

M27-IAR  M249 M240 M60 Pecheneg RPK-74M Type-88

Recon

Mk11Mod0 M40a5 M82a3 .50 M98b SVD SV-98

All-Kit

MP7 P90 P90-TR PDR UMP-45 PP2000

870 MCS M1014 DOA-12 USAS-12 S-20k

M-39 SKS

Sidearms

M9

M1911

Glock 17

Glock 18

M93r

T .44

MP-443

MP-412

gadgets

M320 - 40 mm grenade, 40mm smoke, 40mm buckshot round

M26 MASS - 12 gauge rounds, buckshot rounds, slug rounds, fragmentation rounds

medkits

defibrillators

RPG-7 SMAW M136 AT4 Stinger IGLA Javelin AT mines Welding tool EOD bot

60mm Mortar ammo Claymores C4

radio beacon UG sensors SOFLAM MAV (UAV)

Vehicles

Fighter jets

F/A-18E Super Hornet

SU-35 BM Super Flanker

Attacker Jets

A-10 Thunderbolt II

SU-39 Frogfoot

Attack Helicopters

AH-1Z Viper (Super Cobra)

MI-28 Havoc

Transport Helicopters

UH-1Y Super Huey

KA-60

Scout Helicopters

AH-6 Littlebird

Z-11W

Main Battle Tanks

M1A1 Abrams

T-90A

Infantry Fighting Vehicles

LAV-25

BMP-2M

Mobile AA

LAV-AD

Tunguska-M

Amphibious Assault Vehicle

AAV-71

Boat

RHIB

Fast Transport

ITV

VDV Buggy

Armored Transport

HMMWV

Vodnik