- Ray Gun in 'Little Resistance' mission
After the boat crashes, call in an air strike on the specified location. Run up to the beach, and move to the right. You will find a small puddle at the right side of the beach. Stand in it briefly, then move towards the middle of the beach to find a smaller puddle. Stand in that puddle briefly. Move towards the far left side of the beach. Stand briefly in the puddle in the barb wire. After several seconds, the screen will shake, and you will hear strange voices. Four lion statues will rise out of the ground with alien Ray Guns in their mouths. -From: Chris Hauserman




- Bonus weapons
Successfully complete the indicated task to unlock the corresponding weapon or weapon attachment:


Bolt Action Rifles

Springfield: Reach Level 4.

Bayonet	Successfully complete Marksman Challenge 1 (increases melee attack range).
Rifle Grenade	Successfully complete Marksman Challenge 2 (grenade launcher attachment, replaces Perk 1 slot).

Arisaka: Reach Level 4.

Sniper Scope	Successfully complete Marksman Challenge 1 (increases accuracy and range).
Bayonet	Successfully complete Marksman Challenge 2 (increases melee attack range).
Rifle Grenade	Successfully complete Marksman Challenge 3 (grenade launcher attachment, replaces Perk 1 slot).

Mosin-Nagant: Reach Level 21.

Sniper Scope	Successfully complete Marksman Challenge 1 (increases accuracy and range).
Bayonet	Successfully complete Marksman Challenge 2 (increases melee attack range).
Rifle Grenade	Successfully complete Marksman Challenge 3 (grenade launcher attachment, replaces Perk 1 slot).

Kar98k: Reach Level 41.

Sniper Scope	Successfully complete Marksman Challenge 1 (increases accuracy and range).
Bayonet	Successfully complete Marksman Challenge 2 (increases melee attack range).
Rifle Grenade	Successfully complete Marksman Challenge 3 (grenade launcher attachment, replaces Perk 1 slot).

PTRS-41: Reach Level 57.

Sniper Scope	Successfully complete Marksman Challenge 1 (increases accuracy and range).
Bayonet	Successfully complete Marksman Challenge 2 (increases melee attack range).
Rifle Grenade	Successfully complete Marksman Challenge 3 (grenade launcher attachment, replaces Perk 1 slot).

SVT-40: Reach Level 4.

Flash Hider	Successfully complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight	Successfully complete Marksman Challenge 2 (precision sight).
Telescopic Sight	Successfully complete Marksman Challenge 3 (enhanced telescopic sight).

Gewehr 43: Reach Level 7.

Aperture Sight	Successfully complete Marksman Challenge 2 (precision sight).
Telescopic Sight	Successfully complete Marksman Challenge 3 (enhanced telescopic sight).
Suppressor	Successfully complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Rifle Grenade	Successfully complete Marksman Challenge 4 (grenade launcher attachment, replaces Perk 1 slot).

M1 Garand: Reach Level 17.

Bayonet	Successfully complete Marksman Challenge 2 (increases melee attack range).
Sniper Scope	Successfully complete Marksman Challenge 3 (increases accuracy and range).
Flash Hider	Successfully complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Rifle Grenade	Successfully complete Marksman Challenge 4 (grenade launcher attachment, replaces Perk 1 slot).

STG-44: Reach Level 37.

Flash Hider	Successfully complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight	Successfully complete Marksman Challenge 2 (precision sight).
Telescopic Sight	Successfully complete Marksman Challenge 3 (enhanced telescopic sight).

M1A1 Carbine Reach Level 65.

Flash Hider	Successfully complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight	Successfully complete Marksman Challenge 2 (precision sight).
Bayonet	Successfully complete Marksman Challenge 3 (increases melee attack range).

Thompson: Reach Level 4.

Suppressor	Successfully complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight	Successfully complete Marksman Challenge 2 (precision sight).
Round Drum	Successfully complete Marksman Challenge 3 (increased ammunition capacity).

MP40: Reach Level 10

Suppressor	Successfully complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight	Successfully complete Marksman Challenge 2 (precision sight).
Dual Magazine	Successfully complete Marksman Challenge 3 (increased ammunition capacity).

Type 100: Reach Level 25.

Suppressor	Successfully complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight	Successfully complete Marksman Challenge 2 (precision sight).
Box Magazine	Successfully complete Marksman Challenge 3 (increases ammunition capacity).

Ppsh-41: Reach Level 53.

Aperture Sight	Successfully complete Marksman Challenge 1 (precision sight).
Round Drum	Successfully complete Marksman Challenge 2 (increased ammunition capacity).

M1897 Trench Gun: Reach Level 4.

Grip	Successfully complete Marksman Challenge 1 (vertical foregrip to reduce recoil, replaces Perk slot 1).
Bayonet	Successfully complete Marksman Challenge 2 (increases melee attack range).

Double Barreled Shotgun: Reach Level 29.

Grip	Successfully complete Marksman Challenge 1 (vertical foregrip to reduce recoil, replaces Perk slot 1).
Sawed-Off Shotgun	Successfully complete Marksman Challenge 2 (increases weapon spread, but reduces accuracy).

Type 99: Reach Level 4.

Bipod	Successfully complete Marksman Challenge 1 (reduces motion for more accuracy).
Bayonet	Successfully complete Marksman Challenge 2 (increases melee attack range).

BAR: Reach Level 4.

Bipod	Successfully complete Marksman Challenge 1 (reduces motion for more accuracy).

DP-28: Reach Level 13.

Bipod	Successfully complete Marksman Challenge 1 (reduces motion for more accuracy).

MG 42: Reach Level 33.

Bipod	Successfully complete Marksman Challenge 1 (reduces motion for more accuracy).

FG 42: Reach Level 45.

Bipod	Successfully complete Marksman Challenge 1 (reduces motion for more accuracy).
Telescopic Sight	Successfully complete Marksman Challenge 2 (enhanced telescopic sight).

Browning M1919: Reach Level 61.

Bipod	Successfully complete Marksman Challenge 1 (reduces motion for more accuracy).

Walther P38	Reach Level 4.
Tokarev TT-33	Reach Level 21.
Colt M1911	Reach Level 4.
Nambu	Reach Level 4.
.357 Magnum	Reach Level 49.

Primary Grenades

Frag	Reach Level 4.
N 74 ST	Reach Level 4.
Molotov Cocktail	Reach Level 10.

Special Grenades

Smoke	Reach Level 4.
Tabun Gas	Reach Level 4.
Signal Flare	Reach Level 4.

- Veteran mode
Reach Level 32 to unlock Veteran mode, which is a Co-op mode with much tougher enemies.

- Perks
Successfully complete the indicated task to unlock the corresponding perk:


Perk Slot 1

Bandolier	Reach Level 40 (extra ammunition magazines).
Primary Grenade x2	Reach Level 44 (two primary grenades).
Special Grenade x3	Reach Level 4 (three special grenades, no smoke).
M9A1 Bazooka x2	Reach Level 4 (bazooka with two rockets).
Bomb Squad	Reach Level 16 (seek out enemy explosives).
Satchel Charge x2	Reach Level 4 (two remote detonation explosives).
Bouncing Betty x2	Reach Level 24 (two pressure activated mines).
M2 Flamethrower	Reach Level 65 (projects a controlled stream of fire).

Perk Slot 2

Shades	Reach Level 32 (reduce intensity of signal flares).
Fireworks	Reach Level 4 (higher explosive weapon damage).
Double Tap	Reach Level 36 (increased rate of fire).
Stopping Power	Reach Level 4 (increased bullet damage).
Juggernaut	Reach Level 4 (increased health).
Gas Mask	Reach Level 4 (protect against Tabun Gas).
Camouflage	Reach Level 12 (undetectable to enemy recon planes).
Flak Jacket	Reach Level 4 (reduce explosive damage).
Sleight Of Hand	Reach Level 28 (faster reload).
Overkill	Reach Level 56 (carry two primary guns, no pistol).

Perk Slot 3

Dead Silence	Reach Level 52 (less sound when you move).
Extreme Conditioning	Reach Level 4 (sprint for longer distances).
Iron Lungs	Reach Level 60 (longer breath keep pushed while sniping).
Deep Impact	Reach Level 4 (deeper bullet penetration).
Second Chance	Reach Level 9 (revive downed allies).
Toss back	Reach Level 6 (reset fuse of picked up grenades).
Martyrdom	Reach Level 20 (drop a live grenade when killed).
Steady Aim	Reach Level 4 (increased hip fire accuracy).
Fireproof	Reach Level 48 (reduce fire based weapon damage).
Reconnaissance	Reach Level 64 (show enemy dogs, artillery, and tanks).

Vehicle Perks

Ordnance Training	Reach Level 12 (decrease reload time of turrets).
Lead Foot	Reach Level 28 (increases tank top speed).
Water Cooler	Reach Level 4 (decreased turret overheat).
Greased Bearings	Reach Level 4 (increased turret rotation speed).
Coaxial Machine Gun	Reach Level 40 (driver controlled machine gun).

- Death Card locations
The Death Cards can be found at the following locations. Acquire a Death Card to unlock its effect in Co-op mode.

Thunder

Mission	Semper Fi (Eight of Hearts)
Effect	Headshots cause enemies to explode
Location	At the very beginning after leaving the shack, you will see another shack to the right. The card is inside.

Hard Headed

Mission	Little Resistance (Four of Clubs)
Effect	Enemies take less bullet damage
Location	At the end of the mission before going into the last building, look to the right. The card is in a corner of bushes.

Suicide King

Mission	Hard Landing (King of Hearts)
Effect	Fire explosive pistol rounds while downed
Location	About halfway through the mission you will see a big building with a mini-trench outside. Enter the building, and go into the lower level. The card is to the right when you go into the room with the stairs.

Cold Dead Hands

Mission	Vendetta (Five of Diamonds)
Effect	Enemies take their weapons with them to the grave
Location	After the sniper section at the first part of the mission, Reznov will lead you through a building. Follow the bar around to the end to find the card.

Sticks & Stones

Mission	Their Land, Their Blood (Joker)
Effect	Your weapon arsenal consists of a knife and rocks
Location	Destroy the tanks, and go through the barn. Search the stalls to your right to find the card.

Vampire

Mission	Burn 'em Out (Queen of Hearts)
Effect	Can only recharge your health by getting kills
Location	Just before the second mortar position is a bunker to the left. The card is inside.

Flak Jacket

Mission	Relentless (Nine of Diamonds)
Effect	Enemies take less explosive damage
Location	At the end of the mission, take either the left or right path. Eventually the paths will reconnect. The card is about halfway down the path.

Body Armor

Mission	Ring of Steel (Jack of Spades)
Effect	Enemies die by headshot only
Location	Enter the asylum, the immediately go to the left. The card is in the far bottom left corner.

Undead Soldier

Mission	Eviction (Ace of Spades)
Effect	Enemies come back from the dead
Location	During the first half of the mission, just after the kitchen area, you will eventually see a room to your right that has a large hole in it. Drop down to find the card.

Painkiller

Mission	Blowtorch & Corkscrew (Ten of Clubs)
Effect	Shoot downed Co-op teammates to revive them
Location	Go to the left as you move toward the second bunker. A Japanese soldier hanging upside down is near the card.

Berserker

Mission	Breaking Point (Three of Diamonds)
Effect	Get three kills in five seconds to become Berserk
Location	Clear all four mortar pits, then go to the small shack in the south of this area. The card is inside.

Paintball

Mission	Heart of the Reich (Six of Clubs)
Effect	Paintball guns
Location	The card is in the closed-off subway entrance across the street from the begin of the mission.

Victory

Mission	Downfall (Two of Spades)
Effect	Limits your HUD, turns on friendly fire, and bleed out in half the time
Location	Before you get to the theater, some of your allies will break through a door to your right. The card is past that door.

- Extra custom weapon slots
Reach the indicated Prestige rank to unlock the corresponding extra custom weapon slot:

8	Fourth Prestige
9	Seventh Prestige
6	First Prestige
7	Second Prestige
10	Tenth Prestige

- Extra ammunition
Use the following trick if run out or are running low on ammunition on any mission in Solo mode on any difficulty. Find a non-essential teammate (someone not involved in the story line). Walk up to him, and aim the reticule next to his head or torso. Knife the air, and as you do so move slightly towards them so that the reticule is over them. If done correctly, he should die and drop his weapon. Non-essential teammates will get replaced when you walk into a battle. If the teammate does not die but keeps getting back up, they are essential to the story (for example, Sgt. Roebuck and Sgt. Rezenov).