Called the "9x19mm Sidearm" in-game. 2nd Gen Glock 17C's are the starting weapon for the Terrorist faction. It has semi-automatic and (incorrect) 3-round burst firing modes, and an incorrect 20-round magazine capacity.
Heckler & Koch USP45 Tactical
Called the "K&M 45 Tactical Pistol" in-game. The Heckler & Koch USP45 Tactical possesses a stainless steel slide and odd overall blue tint. It serves as the starting weapon of the Counter-Terrorists. It comes with a detachable sound suppressor.
SIG-Sauer P228
Called the "228 Compact" in-game. It is a SIG-Sauer P228 incorrectly chambered in .357 SIG. The P228 was never designed to handle the hotter .357 SIG round do to its lighter weight cast slide that could only take the higher pressure rounds if an overly heavy spring were installed. The .357 SIG round was first introduced with the SIG-Sauer P229 which had a different heavier CNC machined steel slide that could take the high velocity return with a standard spring and not damage the pistol. It also holds 13 rounds as if it's still chambered in 9mm even though it should hold 12 rounds if it was actually chambered in .357 SIG.
Desert Eagle Mark XIX
Named the "Nighthawk .50 C" ingame. It can be identified as the Mark XIX through the scope rails over the barrel and the taller cocking serrations on the slide.
FN Five-seveN
Named the "ES Five-Seven" ingame. Exclusive to the counter-terrorists.
Beretta 92G Elite II
The only dual-wield weapon in the game. Incorrectly has an all-black finish. Called the ".40 Dual Elite" as a terrorist exclusive in the Handgun category.
Shotguns
Benelli M3 Super 90
Dubbed the "Leone 12 Gauge Super" ingame.
Benelli M4 Super 90
Appears as the "Leone YG1264 Auto Shotgun". Also named the "XM1014".
Sub-Machine Guns
Steyr TMP
Called the "Schmidt Machine Pistol". Available to the counter-terrorists only. Comes with a non-detachable suppressor.
Ingram Mac-10
The MAC-10 retains its name because the company holding the rights to the name went bankrupt. Exclusive to the terrorist faction. The model erroneously shown it as a closed-bolt weapon.
The Heckler & Koch UMP appears as the "KM UMP45" in the game. The charging handle incorrectly locks back on its own before reloading.
FN P90
Named "ES C90" ingame.
Assault Rifles
FAMAS F1
Dubbed the "Clarion 5.56". A exclusive primary weapon for the counter-terrorists.
IMI Galil ARM
It appears as the "IDF Defender" in-game, and is only available to the terrorists. It is modeled after the 7.62x51mm version, but has the 35-round capacity of the 5.56x45mm variant.
Colt M4A1 Carbine
Named the "Maverick M4A1 Carbine" ingame. It comes with a a detachable suppressor. Note: the ejection port, forward assist, and brass deflector is on the wrong side of the reciever. Moreover, the user will chambers it by pulling the forward assist instead of the charging handle.
AK-47
Called the "CV-47".
Steyr AUG A1
Simply named the "Bullpup". Like the USP, it has an odd blue tint. Only available to the counter-terrorists.
SIG SG552 Commando
Named the "Krieg 552" in the game. The SG 552 is an exclusive primary weapon for the terrorists.
Sniper Rifles
Steyr Scout
Called the "Schmidt Scout" ingame.
Accuracy International Arctic Warfare Magnum
The Arctic Warfare Magnum appears as the "Magnum Sniper Rifle". Holds 10 rounds. In reality, both the AWM and AWSM have a 5-shot capacity.
SIG SG550 Sniper
Only available to the counter-terrorists and named the "Krieg 550 Commando".
Heckler & Koch G3SG/1
Referred to as the "D3/AU-1" by the game. Can only be bought by the terrorist faction.
Light Machine Guns
FN M249 Para
The M249 retains its name. It is the only available machine gun and among the most expensive weapons in the game. It fires unrealistically slowly, and for some reason it uses a tiny feed cover that opens to the right.