Before an update to Counter-Strike: Global Offensive, the Glock-18 was available to both teams. In the previous games however, it stills retains its status as a double-sided weapon. In these games, it is used almost exclusively by the Terrorists. In fact, it is fairly rare to encounter any Counter-Terrorists utilizing the weapon. Although it doesn't have any recoil, it loses precision when fired rapidly. Compared to the more expensive pistols, the Glock-18 sports inferior firepower and poor accuracy. For many, it is overshadowed by other, more flexible, handguns. For medium to long ranges, the semi-automatic mode increases accuracy while reducing damage output. When firing in burst mode, damage increases and overall accuracy suffers tremendously. The Glock is the cheapest firearm in the Counter-Strike series, costing only $200 in Counter-Strike: Global Offensive and $400 in the previous iterations. In the first three Counter-Strike games, a Glock-18 user moves at 250 units per second, meaning they do not suffer any speed reduction. In Global Offensive however, a Glock-wielder moves at 240 units per second, slightly slower when compared to the older games. The Glock is also one of the many weapons capable of shooting underwater.
The Glock was once to have a silencer, similar to the USP, as evidenced by incomplete animations in the Counter-Strike files. Those animations may be from Half-Life, where a silenced Glock was left in the files, but was unusable in the game.
Even if the Glock fires a "burst" of one or two shots due to a low magazine count, the animation still shows three casings being ejected.
This is one of two weapons in Counter-Strike with a burst feature, the other being the FAMAS.
In Global Offensive, the Glock has a desert tan frame instead of its black one from the previous games.