Battlefield 3 PC Cheats and Tips

To hold grenades in position before throwing them, press the throw grenade button, then straight away press and hold the fire button. It will then be held in place until you release fire and throw it.

Below is a guide for how much XP/Score you need to get each of the upgrades for Battlefield 3's vehicles:

MBT:

IR Smoke: 800 MBT Score

Coaxial LMG: 2,100 MBT Score

Autoloader: 4,400 MBT Score

Zoom Optics: 7,600 MBT Score

Maintenance: 12,000 MBT Score

Coaxial HMG: 17,700 MBT Score

Proximity Scan: 24,700 MBT Score

Guided Shell: 33,200 MBT Score

Thermal Optics: 43,200 MBT Score

Thermal Camo: 54,800 MBT Score

Canister Shell: 68,100 MBT Score

Reactive Armor: 83,200 MBT Score

CITV Station: 100,000 MBT Score

IFV:

IR Smoke: 800 IFV Score

ATGM Launcher: 2,300 IFV Score

Belt Speed: 4,700 IFV Score

Coaxial LMG: 8,300 IFV Score

Thermal Optics: 13,100 IFV Score

Proximity Scan: 19,200 IFV Score

Zoom Optics: 26,900 IFV Score

Maintenance: 36,000 IFV Score

APFSDS-T Shell: 47,000 IFV Score

Thermal Camo: 60,000 IFV Score

Guided Missile: 74,000 IFV Score

Reactive Armor: 90,000 IFV Score

Mobile AA:

IR Smoke: 400 Mobile AA Score

Anti-Air Missile: 1,200 Mobile AA Score

Belt Speed: 2,500 Mobile AA Score

Zoom Optics: 4,400 Mobile AA Score

Proximity Scan: 7,000 Mobile AA Score

Thermal Optics: 10,000 Mobile AA Score

Air Radar: 14,000 Mobile AA Score

Maintenance: 19,000 Mobile AA Score

Thermal Camo: 25,000 Mobile AA Score

Reactive Armor: 32,000 Mobile AA Score

Attack Helicopters:

IR Flares: 300 Attack Helicopter Score

Heat Seekers: 800 Attack Helicopter Score

Stealth: 1,600 Attack Helicopter Score

Autoloader: 2,800 Attack Helicopter Score

Zoom Optics: 4,400 Attack Helicopter Score

Proximity Scan: 6,500 Attack Helicopter Score

Air Radar: 9,000 Attack Helicopter Score

Guided Missile: 12,000 Attack Helicopter Score

Extinguisher: 16,000 Attack Helicopter Score

Maintenance: 20,000 Attack Helicopter Score

Thermal Optics: 25,000 Attack Helicopter Score

Laser Painter: 30,500 Attack Helicopter Score

Below Radar: 37,000 Attack Helicopter Score

ECM Jammer: 44,000 Attack Helicopter Score

Guided Rocket: 51,000 Attack Helicopter Score

TV Missile: 60,000 Attack Helicopter Score

Scout Helicopters:

IR Flares: 400 Scout Helicopter Score

Heat Seekers: 1,200 Scout Helicopter Score

Stealth: 2,500 Scout Helicopter Score

Belt Speed: 4,400 Scout Helicopter Score

Proximity Scan: 7,000 Scout Helicopter Score

Air Radar: 10,000 Scout Helicopter Score

Extinguisher: 14,000 Scout Helicopter Score

Maintenance: 19,000 Scout Helicopter Score

Guided Missile: 25,000 Scout Helicopter Score

Below Radar: 32,000 Scout Helicopter Score

Laser Painter: 40,000 Scout Helicopter Score

ECM Jammer: 48,000 Scout Helicopter Score

Jets:

IR Flares: 300 Jets Score

Heat Seekers: 700 Jets Score

Stealth: 1,500 Jets Score

Belt Speed: 2,700 Jets Score

Proximity Scan: 4,200 Jets Score

Rocket Pods: 6,200 Jets Score

Air Radar: 8,600 Jets Score

Extinguisher: 11,600 Jets Score

Below Radar: 15,000 Jets Score

Maintenance: 19,000 Jets Score

Guided Missile: 24,000 Jets Score

Beam Scanning: 29,000 Jets Score

..

To unlock more items in each class's kit, you need to play as that class to gain XP in the particular area. Below is a guide to how much XP/Score you need to unlock each upgrade:

Assault:

Defibrillator: 7,000 Assault Score

M416: 13,000 (20,000) Assault Score

M320: 21,000 (41,000) Assault Score

AEK-971: 31,000 (72,000) Assault Score

F2000: 41,000 (113,000) Assault Score

M26 MASS: 53,000 (166,000) Assault Score

AN-94: 66,000 (232,000) Assault Score

G3A3: 441,000 and 232,000 Assault Score

KH2002: 126,000, 441,000 and 232,000 Assault Score

Engineer:

FIM-92 Stinger: 7,000 Engineer Score

SA-18 IGLA: 7,000 Engineer Score

M15 AT Mine: 13,000 (20,000) Engineer Score

SCAR-H: 21,000 (41,000) Engineer Score

EOD Bot: 31,000 (72,000) Engineer Score

A-91: 41,000 (113,000) Engineer Score

G36C: 119,000 (232,000) Engineer Score

SG553: 278,000 and 232,000 Engineer Score

Support:

M249: 6,000 Support Score

C4: 11,000 (17,000) Support Score

PKP Pecheneg: 18,000 (35,000) Support Score

M224 Mortar: 25,000 (60,000) Support Score

M240B: 40,000 (100,000) Support Score

M18 Claymore: 40,000 (140,000) Support Score

M60E4: 60,000 (200,000) Support Score

Recon:

SV98: 6,000 Recon Score

T-UGS: 12,000 (18,000) Recon Score

SKS: 18,000 (36,000) Recon Score

SOFLAM: 27,000 (69,000) Recon Score

M40A5: 36,000 (99,000) Recon Score

MAV: 47,000 (146,000) Recon Score

M98B: 57,000 (203,000) Recon Score

M39 EMR: 252,000 and 203,000 Recon Score

For a complete list of all the Dog Tags that can be collected in EA's Battlefield 3, see below:

Default Dog Tag - Blank Dog Tag Available To All

Private First Class Dog Tag - Reach Rank Private First Class

Private First Class 1 Star Dog Tag - Reach Rank Private First Class 1 Star

Private First Class 2 Star Dog Tag - Reach Rank Private First Class 2 Star

Private First Class 3 Star Dog Tag - Reach Rank Private First Class 3 Star

Lance Corporal Dog Tag - Reach Rank Lance Corporal

Lance Corporal 1 Star Dog Tag - Reach Rank Lance Corporal 1 Star

Lance Corporal 2 Star Dog Tag - Reach Rank Lance Corporal 2 Star

Lance Corporal 3 Star Dog Tag - Reach Rank Lance Corporal 3 Star

Corporal Dog Tag - Reach Rank Corporal

Corporal 1 Star Dog Tag - Reach Rank Corporal 1 Star

Corporal 2 Star Dog Tag - Reach Rank Corporal 2 Star

Corporal 3 Star Dog Tag - Reach Rank Corporal 3 Star

Sergeant Dog Tag - Reach Rank Sergeant

Sergeant 1 Star Dog Tag - Reach Rank Sergeant 1 Star

Sergeant 2 Star Dog Tag - Reach Rank Sergeant 2 Star

Sergeant 3 Star Dog Tag - Reach Rank Sergeant 3 Star

Staff Sergeant Dog Tag - Reach Rank Staff Sergeant

Staff Sergeant 1 Star Dog Tag - Reach Rank Staff Sergeant 1 Star

Staff Sergeant 2 Star Dog Tag - Reach Rank Staff Sergeant 2 Star

Gunnery Sergeant Dog Tag - Reach Rank Gunnery Sergeant

Gunnery Sergeant 1 Star Dog Tag - Reach Rank Gunnery Sergeant 1 Star

Gunnery Sergeant 2 Star Dog Tag - Reach Rank Gunnery Sergeant 2 Star

Master Sergeant Dog Tag - Reach Rank Master Sergeant

Master Sergeant 1 Star Dog Tag - Reach Rank Master Sergeant 1 Star

Master Sergeant 2 Star Dog Tag - Reach Rank Master Sergeant 2 Star

First Sergeant Dog Tag - Reach Rank First Sergeant

First Sergeant 1 Star Dog Tag - Reach Rank First Sergeant 1 Star

First Sergeant 2 Star Dog Tag - Reach Rank First Sergeant 2 Star

Master Gunnery Sergeant Dog Tag - Reach Rank Master Gunnery Sergeant

Master Gunnery Sergeant 1 Star Dog Tag - Reach Rank Master Gunnery Sergeant 1 Star

Master Gunnery Sergeant 2 Star Dog Tag - Reach Rank Master Gunnery Sergeant 2 Star

Sergeant Major Dog Tag - Reach Rank Sergeant Major

Sergeant Major 1 Star Dog Tag - Reach Rank Sergeant Major 1 Star

Sergeant Major 2 Star Dog Tag - Reach Rank Sergeant Major 2 Star

Warrant Officer One Dog Tag - Reach Rank Warrant Officer One

Chief Warrant Officer Two Dog Tag - Reach Rank Chief Warrant Officer Two

Chief Warrant Officer Three Dog Tag - Reach Rank Chief Warrant Officer Three

Chief Warrant Officer Four Dog Tag - Reach Rank Chief Warrant Officer Four

Chief Warrant Officer Five Dog Tag - Reach Rank Chief Warrant Officer Five

Second Lieutenant Dog Tag - Reach Rank Second Lieutenant

First Lieutenant Dog Tag - Reach Rank First Lieutenant

Captain Dog Tag - Reach Rank Captain

Major Dog Tag - Reach Rank Major

Lieutenant Colonel Dog Tag - Reach Rank Lieutenant Colonel

Assault Rifle Dog Tag - Obtain Assault Rifle Efficiency Ribbon 10 Times

Carbine Dog Tag - Obtain Carbine Efficiency Ribbon 10 Times

Light Machine Gun Dog Tag - Obtain Light Machine Gun Efficiency Ribbon 10 Times

Sniper Rifle Dog Tag - Obtain Sniper Rifle Efficiency Ribbon 10 Times

Shotgun Dog Tag - Obtain Shotgun Ribbon 10 Times

Pdw Dog Tag - Obtain Pdw Ribbon 10 Times

Handgun Dog Tag - Obtain Handgun Ribbon 10 Times

Melee Dog Tag - Obtain Melee Ribbon 10 Times

Resupply Dog Tag - Obtain Resupply Efficiency..