Singularity is a science-fiction first person shooter video game developed by Raven Software and published by Activision in 2010 for the PC, Xbox 360 & PS3. The game takes place on a fictional Russian island called Katorga-12, once home to a research base which developed technology using the mysterious "Element 99." The player character, Captain Renko, is part of a US task force sent to investigate reports of strange activity on the island, soon found to be a result of the time-altering powers of Element 99. Armed with a prototype "Time Manipulation Device," Renko finds himself travelling between the active facility of 1955 and the shattered ruin of 2010 as he tries to piece together the details of an accident that occurred as he arrived, which led to an altered timeline where the Soviet Union annexed the entire world.
The following weapons appear in the video game Singularity:
Singularity uses the typical two-weapon system for the player's inventory, with the choice of a revolver, assault rifle, sniper rifle, shotgun, grenade launcher, railgun, and a GAU-19-inspired three-barrel rotary gun incorrectly identified as the "autocannon." In addition, there are two "special" weapons, a command-guided projectile rifle called the "Seeker" and a SACLOS rocket launcher, which can be picked up and carried as a third weapon but will be discarded if the player switches weapons. All of the player-used armament consists of fictional "Frankenguns" which are hybrids of numerous modern weapon parts embellished with "high tech" additions such as exposed cables and rotating turbine-like contraptions, while all the real guns in the game are used only by enemies or other NPCs.
The game allows player-used weapons to be upgraded to increase their damage, reload speed or magazine size; predictably, the latter is incorrectly called "clip size."
Real world weapons
Fabrique Nationale SCAR-H CQC
One First Generation SCAR-H CQC is used by Devlin in the game. He can be seen holding it during the flight towards Katorga-12. It is the one and only time the SCAR-H CQC can be seen in the game; by the time Devlin is encountered again, he has apparently lost this weapon and is instead carrying the game's fictional "AR9 Valkyrie," a futuristic AK-type assault rifle.
Soviet soldiers guarding the 1955 version of Katorga-12 are equipped with ordinary AK-47 assault rifles as their standard armament, rather than the fictional "AR-9 Valkyrie" variant seen in the 2010 facility.
AKMSU with black furniture and telescopic stock can be seen in the hands of Russian soldiers.
In early preview screenshots, Russian soldiers were rather mysteriously armed with the Sturmgewehr 44 rather than the AK-47 they use in the final version. Precisely why is unclear; the AK-47 was available in 1955 (though mass production had not fully settled until 1956) and even if Katorga-12 had not been issued it yet, Russian soldiers would be using SKS rifles or PPSh-41 or PPS-43 submachine guns, not rare and notoriously delicate WW2-vintage German weapons.
Makarov PM pistols are occasionally seen in the hands of Soviet guards in the 1955 facility, mostly as the standard weapon of riot shield soldiers. The Makarov can also be seen in the hands of one of the survivors of the Katorga-12 disaster in a "ghost" flashback in 2010. Killing riot shield enemies will have them drop ammunition for the fictional "Centurion" revolver; odd to say the least, considering the Centurion is reloaded by replacing the entire cylinder and it's doubtful that it uses 9x18mm ammunition.
Smith & Wesson Model 629 Classic
Demichev carries a Smith & Wesson Model 629 Classic revolver (with Model 29 handle) with him in both the past and present; given the model in both time periods is exactly the same, this does rather imply he's been hauling the same revolver around with him for 55 years, including the 23 years in which the Model 629 didn't actually exist yet.
Winchester Model 1897 "Trench Gun"
Soviet soldiers guarding the 1955 Katorga-12 facility use the the Model 1897 "Trench Gun" rather than the fictional "Volk S4" that enemies in the present use. The soldiers are never seen pumping or reloading the shotgun; the former is most likely due to recycling the animations for the semi-automatic Volk shotgun.
General Dynamics M197 Vulcan
The M197 Vulcan can be seen mounted on Russian helicopters in the present-day facility.
An unknown fragmentation grenade is used by Soviet soldiers in 1955.
NOTE: All the fictional weapons uses energy of E99 element. This explains its somewhat unusual kind.
AR-9 Valkyrie is a futuristic assault rifle, built on the basis of the AK-47 and equipped with a shortened barrel, right folding stock and red dot sight. It uses standard 30-round capacity 7.62 x39mm AK magazines.