The silencer returns in Call of Duty: Ghosts . It prevents the player showing up as a red dot on the radar when firing, and reducing noise and muzzle flash of the gun in exchange for reducing range by 25% (or multipliers on Sniper Rifles ). An interesting thing in the game code is that every weapon class has a separate code where it says the percentage of range lost. This means that in the future Infinity Ward will be able to change the effect of the silencer separately for each weapon class. The silencer has a different effect on sniper rifles; the multipliers of the weapon are changed so that the player gets fewer one shot kills to certain parts on the body. The Honey Badger , K7 , and VKS have integral silencers, meaning that those weapons have the effects of the silencer as default instead of an extra attachment option, and those weapons don't have access to the Flash Suppressor , Muzzle Brake , or Chrome Lined .
The Northern Sea Route was opened by receding ice in 2005 but was closed by 2007. The amount of polar ice had receded to 2005 levels in August 2008. In late August 2008, it was reported that images from the NASA Aqua satellite had revealed that the last ice blockage of the Northern Sea Route in the Laptev Sea had melted. This would have been the first time since satellite records began that both the Northwest Passage and Northern Sea Route had been open simultaneously.  However, other scientists suggested that the satellite images may have been misread and that the sea route was not yet passable.