In Multiplayer mode complete the indicated task to unlock the corresponding Wildcard.

Unlock Armor Buster Wildcard:
Destroy 5 armored vehicles in a round.

Unlock Savior Trophies Wildcard:
In Global collect 50x Savior Trophies.

Unlock Avenger Trophies Wildcard:
In Global collect 50x Avenger Trophies.

Unlock Beat the House Wildcard:
Get 15 grenade kills in a round.

Unlock 2 Pair Wildcard:
Get 2 of any 2 trophies in a round.

Unlock Full Deck Wildcard:
Get 52 total kills in a round.

Unlock Staying Dry Wildcard:
With a sea vehicle get 2 seconds air time in a round.

Unlock Airtime Wildcard:
In a land vehicle get 2 seconds air time in a round.

Unlock Straight Flush Wildcard:
Destroy 1 vehicle of each kind in a round.

Unlock Full House Wildcard:
Destroy 3+2 vehicles of the same kind in a round.

Unlock Gunslinger Wildcard:
In Global get 80 kills with a handgun.

Unlock Santa's Litle Helper Wildcard:
Get 10 Kill Assists Points in a round.

Unlock Headshots Wildcard:
Get 20 kills from headshots in a round.

Unlock Squad Avenger Card Wildcard:
In Global get 100 Avenger Points avenging squad members.

Unlock Parashooter Wildcard:
Get 4 road kills with any air vehicle in a round.

Unlock Cab Driver Wildcard:
Spend 5 minutes in a round as a driver in a vehicle with passengers.

Unlock 1 On 1 Land Wildcard:
Destroy 1 land vehicle of the same kind without assistance in a round.

Unlock 1 On 1 Sea Wildcard:
Destroy one sea vehicle of the same kind without assistance in a round.

Unlock 1 On 1 Air Wildcard:
Destroy an air vehicle of the same kind without assistance in a round.

Unlock Chopper Chopper Kills Wildcard:
Destroy 5 air vehicles in a round.

Unlock Dead Eye Headshots Wildcard:
In Global get 100 headshots with any sniper rifle.

Unlock Destruction Site Wildcard:
Destroy 50 objects in a round.

Unlock Dueces are Wild Wildcard:
Kill 2 enemies of each kit in a round.

Unlock Five of a Kind Wildcard:
Destroy 5 vehicles of the same kind in a round.

Unlock Snake Eyes Wildcard:
Get 11 kills as 2 different classes in a round.

Unlock Squad Wild Card Wildcard:
Get 1 Squad Member trophy per squad member in a round.

Unlock Strike Wildcard:
Kill 10 enemies at the same time in a round.

Unlock Tank Buster Wildcard:
Destroy 5 tanks in a round.

Unlock Three Of A Kind Wildcard:
Destroy 3 vehicles of the same kind in a round.

Complete the indicated task to get the corresponding Gamerscore.

I Love Gold! - GamerScore 10:
Find 1 Gold bar.

Specialist - GamerScore 10:
(Online) Reach Rank 3.

Darwin's Parachute - GamerScore 10:
(Online) Glide in the parachute for 3 seconds.

Home Wrecker - GamerScore 10:
Destroy 200 walls.

Master Sergeant - GamerScore 15:
(Online) Reach Rank 8.

Never Used A Door - GamerScore 15:
(Online) Destroy 1,000 walls.

Forest Ranger - GamerScore 15:
(Online) Knock down 1,000 trees.

Manic Lumberjack - GamerScore 15:
Knock down a small forest.

Hold on! - GamerScore 15:
Complete 'Air Force One' on normal.

You Found It You Keep It - GamerScore 15:
Find 5 unique collectables.

Not Even A Nugget! - GamerScore 15:
Complete 'Acta Non Verba' on normal.

You And What Army? - GamerScore 15:
Complete 'Crossing Over' on normal.

He Might Come In Handy - GamerScore 15:
Complete 'Par for the Course' on normal.

Get Me Started - GamerScore 15:
(Online) Participate in one online match (Ranked).

Let's Take That Boat - GamerScore 15:
Complete 'Crash and Grab' on normal.

Catch The 'Bad' Moment - GamerScore 15:
(Online) Take 3 pictures using the image system.

Staying Alive - GamerScore 15:
Complete one mission without dying (any difficulty).

With My Devil Dogs - GamerScore 15:
(Online) Use Squad in the menu, find a friend and play one round.

There Is No 'I' In Squad - GamerScore 15:
(Online) Have 20 Squad members spawn on you without dying in a single round.

Always Get Paid In Gold Bars - GamerScore 15:
Complete 'Welcome To Bad Company' on normal.

Check My Grill - GamerScore 15:
Find half of the Gold

Ooh Rah - GamerScore 20:
(Online) Achieve half of ALL awards.

On Top Of The World - GamerScore 20:
Climb to the highest spot in the game.

Half Way Thru - GamerScore 20:
Find half of ALL collectables.

Death From Above - GamerScore 20:
Kill 25 enemies in a helicopter.

The Hypochondriac - GamerScore 20:
Use Auto Injector 50 Times.

The Anti-Mechanic - GamerScore 20:
Destroy 50 vehicles. (containing enemy AI).

Been There, Drove That! - GamerScore 20:
Drive all vehicle types (Jeep, Tank, Heli, Boat).

One In A Million - GamerScore 20:
Hit hostile helicopter with laser designator.

Dog Owner! - GamerScore 20:
(Online) Collect 5 unique dog tags.

Get The Dog! - GamerScore 20:
(Online) Collect 50 unique dog tags.

Be The Best - GamerScore 20:
(Online) Place #1 in a ranked match.

Vehikill - GamerScore 20:
(Online) Get at least one kill in every vehicle.

Colonel - GamerScore 25:
(Online) Reach Rank 20.

Drive By - GamerScore 25:
(Online) 100 kills using vehicle.

Action, Not Words! - GamerScore 25:
Complete 'Welcome To Bad Company' on hard.

Where Are They Going So Fast? - GamerScore 25:
Complete 'Acta Non Verba' on hard.

Say Goodbye To The Gold! - GamerScore 25:
Complete 'Crossing Over' on hard.

Cart Wheels - GamerScore 25:
Complete 'Par for the Course' on hard.

Russia? - GamerScore 25:
Complete 'Air Force One' on hard.

Capitalist Pigs, Very Nice - GamerScore 25:
Complete 'Crash and Grab' on hard.

Leatherneck - GamerScore 25:
(Online) Play 100 Online matches.

I Am Bad Company! - GamerScore 25:
(Online) Achieve ALL the awards.

Clean Sweep - GamerScore 25:
Find ALL collectables.

Killer On The Loose - GamerScore 25:
Kill 25 enemies.

Here Is Your DD-214 - GamerScore 30:
Complete 'Ghost Town' on hard.

Sir, Yes Sir! - GamerScore 30:
Complete 'Ghost Town' on normal.

Beans Bullets Bandages - GamerScore 30:
(Online) Get 10,002 kills.

Gold Digger - GamerScore 30:
Find ALL Gold bars.

General Of The Army - GamerScore 30:
(Online) Reach Rank 25.

The easiest and quickest way to find items and weapons is to access the map and look for 'X's as they indicate their location. Also search near the 'X's as sometimes there will be gold pickup spots there.

These become unlocked when you play Multiplayer mode and complete certain tasks. Below is an alphabetical list of the trophies which can be obtained along with the corresponding task.

Unlock Assault Rifle Efficiency Trophy:
Get 6 kills with an assault rifle in a round.

Unlock Avenger Trophy:
Get 3 Avenger Points in a round.

Unlock Best Squad Trophy:
Awarded at the end of a round.

Unlock Big Guns Trophy:
Get 5 kills with artillery in a round.

Unlock Carbine Efficiency Trophy:
Get 6 kills with a M16A2 in a round.

Unlock Clear Skies Trophy:
Get 5 kills with a stationary weapon in a round.

Unlock Combat Aviator Trophy:
Get 5 kills with an air vehicle in a round.

Unlock Combat Efficiency Trophy:
Get a 6 kill streak in a round.

Unlock Combat Engineer Trophy:
Get 20 vehicle repair points (2 repairs) in a round.

Unlock Compact Assault Rifle Efficiency Trophy:
Get 6 kills with a compact assault rifle in a round.

Unlock Demo Pack Efficiency Trophy:
Get 3 kills with C4 in a round.

Unlock Emplacement Trophy:
Get 5 kills with a stationary weapon in a round.

Unlock Explosive Efficiency Trophy:
Get 10 kills with explosives in a round.

Unlock Firearm Efficiency Trophy:
Get 3 kills with a handgun in a round.

Unlock Frag Out Efficiency Trophy:
While playing Demolitionists get 3 kills with a grenade in a round.

Unlock Grenade Launcher Efficiency Trophy:
Get 6 kills with a grenade launcher in a round.

Unlock Grenadier Efficiency Trophy:
While playing Assault get 3 kills using grenades in a round.

Unlock High Card Trophy:
Get the best IAR Score in a round.

Unlock Kill Assists Trophy:
Get 5 kill assists in a round.

Unlock Laser Designating Efficiency Trophy:
From laser designating get 3 kills in a round.

Unlock Ligh Machinegun Efficiency Trophy:
Get 6 kills with a light machinegun in a round.

Unlock Marksman Trophy:
Get 5 kills with a sniper rifle in a round.

Unlock Medic Trophy:
Get 10 points from Medkit (2 heals) in a round.

Unlock Melee Combat Trophy:
Get 5 melee kills in a round.

Unlock Mine Placement Efficiency Trophy:
Get 3 kills with mines in a round.

Unlock Mortar Strike Efficiency Trophy:
Get 3 kills with a mortar strike in a round.

Unlock Naval Surface Warfare Trophy:
Get 5 kills with a sea vehicle in a round.

Unlock Objective Attack Trophy:
Destroy the last objective in a round.

Unlock Objective Defender Trophy:
Get 30 Defend Points in a round.

Unlock Objective Destroyer Trophy:
Destroy 3 objectives in a round.

Unlock Rocket Launcher Efficiency Trophy:
In a round, get 3 kills with a rocket launcher.

Unlock Savior Trophy:
Get 3 Savior Points in a round.

Unlock Shotgun Efficiency Trophy:
Get 5 kills with a shotgun in a round.

Unlock Squad Medication Trophy:
Get 40 Squad Member Heal Points in a round.

Unlock Squad Member Trophy:
Get 5 assists or save 5 squad members in a round.

Unlock SVU Efficiency Trophy:
Get 5 kills with the SVU in a round.

Unlock Tank Warfare Trophy:
Get 5 kills with tanks in a round.

Unlock Target Tagging Efficiency Trophy:
Get 2 Kill Assists from Dartgun Tagging in a round.

Unlock Transport Vehicle Trophy:
Get 5 kills with a transport vehicle in a round.

Unlock UMP Trophy:
Get 6 kills with a UMP in a round.

Unlock Wheels Of Hazard Trophy:
Get 2 road kills in a round.

Unlock Winning Team Trophy:
Awarded at the end of a round.

If you want to increase your arsenal of weapons to include the following then complete the indicated task to get them.

Unlock M60:
Visit the website findallfive.com and select the 'Join the Battlefield Community' option and sign up with Electronic Arts. When you then register for the 'Battlefield: Bad Company e-mail newsletter' you will receive a unique code by e-mail which will enable you to unlock this destructive weapon.

Unlock F2000 Assault Rifle:
Register your old Battlefield games at http://www.veteran.battlefield.com/

Unlock QBU-88 Sniper Rifle:
Unlocked through a unique code which was provided if the game was pre-ordered before June 23rd, 2008.

Unlock Uzi:
Download the 'Battlefield: Bad Company' demo version and then select the 'Quick Match' option. Then play a ranked match and get over 23,000 EXP to reach Rank 4.

Unlock USAS-12 Semi-Automatic Shotgun:
When you view your multiplayer stats online this weapon will be available the next time you sign into the game.