In CS2 (Counter-Strike 2), a smoke refers to a smoke grenade, which is a tactical item that players can throw to create a large cloud of smoke, effectively blocking vision and sightlines for both the players who throw it and their opponents.

Smoke grenades are crucial for controlling the flow of the game, allowing players to block sniper sightlines, obscure chokepoints, or provide cover when executing strategies or bomb plants. The smoke lasts for several seconds, creating a barrier that prevents enemies from seeing through it.

Players often use smokes for strategic purposes, like:

Blocking enemy vision: When pushing a site, smokes can prevent snipers or enemies in advantageous positions from taking shots.
Obscuring exits/entries: Smokes can be used to safely cross open areas without being spotted.
Disrupting the enemy’s plans: Throwing a smoke in a critical area can force the enemy to reposition or adjust their strategy.
In short, the smoke grenade is an essential part of tactics in CS2, often used to give teams an advantage by manipulating vision and timing.