Stack:

Stack is a strategy where multiple Counter-Strike 2 players concentrate in one area of the map instead of spreading out. Teams stack a site, a lane, or even a bombsite to strengthen their defense, surprise an attack, or increase the odds of winning a key fight.

The term can also describe a team putting extra players on a suspected bombsite when reading the opponent’s setup. In Counter-Strike 2, stacking is often a risk-reward choice: it can shut down a hit if the read is correct, but it leaves other parts of the map weak.

Related: Rotate (Rotation), Bombsite (A/B Site), Hold