Dead Silence E3 2007 Trailer Overgrown Multiplayer Gameplay TV Spot

Better accuracy
Once you get the Red Dot Scope addon to your weapons, use it over the ACOG scope. The red dot will not enhance or take away anything and provides a better aimpoint on most weapons. The ACOG scope will actually add more range to your weapon, but take away accuracy which accomplishes almost nothing; especially so for snipers because it takes away range and adds nothing.

Cheat mode
Successfully complete the game. A "Cheat" option will now appear during game play at the "Options" menu.

Cheat options
Collect the Intel Pieces (enemy laptop computers) hidden throughout the game to unlock the cheat options. The number of pieces you have determines which specific cheats are available.

CoD Noir: 2 Intel Pieces. Allows black and white graphics.
Photo-Negative: 4 Intel Pieces. Inverts the colors.
Super Contrast: 6 Intel Pieces. Increases the contrast.
Ragtime Warfare: 8 Intel Pieces. Silent movie mode.
Cluster Bombs: 10 Intel Pieces. When a frag grenade explodes, four more will explode in a cross-shaped pattern.
A Bad Year: 15 Intel Pieces. Enemies explode into tires when shot.
Slow-Mo Ability: 20 Intel Pieces. The game slows to half speed when you melee.
Infinite Ammo: 30 Intel Pieces. Reloads are no longer necessary. This has no effect with single-shot weapons such as RPGs, C4, or Claymores.

Crew Expendable: Desert Eagle
In the second large containment room, run ahead of your team. There are two enemies with Desert Eagles who will try to surprise you around two corners, depending on the path you take.

Epilogue mission
Successfully complete the game and watch the entire credits to unlock the bonus Epilogue mission.

Faster experience
To level up quicker than usual, try to use the same gun until all the marksman and elite challenges are completed. They provide huge boosts and will quickly level you up to get new guns. However, do not use those guns yet. Just keep on the challenge until it has completed. The third phase of the challenge usually ends with 1,000 experience points and that will bump you up a rank almost in itself. Also, do not forget about the strange challenges like jumping 15 feet and surviving or falling 30 feet to your death. To get that one if not previously unlocked play the "Countdown" map and jump into one of the open missile silos. You will get instant experience points for simply dying. Also, remember to go prone and crouch to get those challenges as well.

To level up, gain points, and to complete challenges easily, find a TDM game of the map "Shipment", preferably with a lot of people. Make sure you have the Steady Aim/Martyrdom/Stopping Power perks on and choose a gun you want to level up. Shipment is a very small close shoulder-to-shoulder map. Just run around holding down the trigger, taking down as many people as possible. This is very fast paced and you should tick points very quickly.

Game Over: SSgt. Griggs's "Success!" comment
Killing all three RPG enemies in the pursuing trucks in Game Over results in SSgt. Griggs saying "Success!".

Golden weapons
Complete the indicated task to unlock the corresponding golden weapon camouflage.

Golden Ak-47: Complete all Assault Rifle challenges.
Golden Desert Eagle: Reach level 55.
Golden Dragonuv: Complete all Sniper challenges.
Golden M1014: Complete all Shotgun challenges.
Golden M60: Complete all LMG challenges.
Golden Mini-Uzi: Complete all SMG challenges.

Intel Pieces
The Intel Pieces can be found in the following levels. There are a total of thirty Intel Pieces.

Level 2: 2 Intel Pieces
Level 4: 2 Intel Pieces
Level 5: 3 Intel Pieces
Level 6: 2 Intel Pieces
Level 7: 2 Intel Pieces
Level 9: 3 Intel Pieces
Level 10: 2 Intel Pieces
Level 12: 2 Intel Pieces
Level 13: 3 Intel Pieces
Level 14: 2 Intel Pieces
Level 16: 2 Intel Pieces
Level 17: 1 Intel Piece
Level 18: 2 Intel Pieces
Level 19: 2 Intel Pieces

Mile High Club mission
Complete Story mode under any difficulty setting.

Multiplayer Weapons