In Global Offensive, because all weapons are able to achieve one-hit headshots against players without helmets, the Glock-18 is a good choice to spam headshots in pistol rounds.

The weapon is more suitable for spamming in semi-auto due to the decreased spread in later games.

However, this tactic is not viable if enemies are equipped with armor.

The ammo capacity of the Glock-18 allows it to overwhelm Counter-Terrorists who have limited ammo in pistol rounds and is effective for rushing.

Movement speed in hammer units per secondД¬ounter-Strike, Condition Zero and Source Properties Counter-Strike: Global OffensiveД¬ounter-Strike and Counter-Strike: Condition Zero

In Counter-Strike: Source and Counter-Strike: Global Offensive, all types of ammo sharing had been removed. This is because all three weapons use 9mm Parabellum ammunition, but ammo is shared only in GoldSrc Counter-Strike games. If equipped with the K&M Sub-Machine Gun or Schmidt Machine Pistol, the Glock will share an ammo pool of 120 rounds with them.

The Glock appears to be effective at close range against unarmored opponents.ДЄlongside with the FAMAS, bots will never use the burst-fire of the Glock, preferring the semi-automatic mode instead.Д®ven if the player has set the Glock to fire in burst-mode, it can only fire semi-automatically when combined with the tactical shield. The Glock's high rate of fire and burst mode makes it effective for rushing and thus is a good counterbalance for the CTs' accuracy oriented spawn pistols ( USP/ USP-S/ P2000). These advantages come to light in pistol rounds, where players need to conserve money and many players go without armor, helmet, and more advanced weapons. As a pistol, it is also lightweight and has a short reload time. Despite its massive flaws, its advantages are its magazine size (20 rounds, second largest for pistols only losing to Dual Berettas), low recoil, high rate of fire, and good accuracy in all games. It is common for the Glock to be discarded in favor of better pistols. Don't be fooled by the fact that it doesn't have any visual recoil, it has innacuracy from firing on GoldSrc games. It is recommended to use semi-automatic mode for medium to long ranges and burst mode for short-range.Д¬ompared to other pistols, the Glock-18 has inferior firepower and poor armor penetration in GoldSrc games. In Global Offensive, switching the fire mode makes a distinctive 'click' noise audible to all players.Д«urst-fire offers a much higher rate of fire, allowing for a higher burst damage, at the cost of longer delays in between bursts and less controllable recoil and inaccuracy. The player spawns with the pistol in semi-automatic mode, and can switch to the burst mode with the alternate fire key, and can switch back to semi-automatic fire by using the alternate fire key again. It is one of two weapons in Counter-Strike with a burst mode, the other being the FAMAS. Unlike the real Glock-18, the in-game portrayal of the Glock-18 features a selector switch and a burst-fire mode in place of the automatic mode. The depiction in Global Offensive, based on the Glock pistol from Left 4 Dead 2, closely resembles a Glock 26, but the slide and frame have been extended to the length of the Glock 17. While GoldSrc versions of the Glock-18 maintain a faithful resemblance to the real pistol, the version in Source more closely resembles the Glock 19, the compact version of the Glock 17. It is one of the cheapest firearms in the Counter-Strike series, costing only $200 in Global Offensive (the others being the P2000 and USP-S) and $400 in the previous games.

It is available to both teams' buy menu in earlier games and in Global Offensive before the Januupdate, but has since been restricted to the Terrorists' buy menu only. If players wish, they may also purchase one from the buy menu. A T player will receive a Glock at the start of a round if it is the first round in a half, they died in the last round, or if they ended the last round without a sidearm. In-game, the Glock-18 is the spawn pistol for the Terrorist team. Because of its design as a machine pistol, in real life, it is exclusively used by Counter-Terrorist operatives and is not available to the general public in most countries. With the selector lever in the bottom position, the pistol will fire fully automatic and, with the selector lever in the top position, the pistol will fire semi-automatically. This machine pistol has a lever-type fire-control selector switch, installed on the serrated portion of the rear left side of the slide. The Glock 18 is a selective-fire variant of the Glock 17, developed at the request of the Austrian Counter-Terrorist unit EKO Cobra.

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