RUSH is one of the oldest, simplest and most practical tactics in CS games. In an age that values time over economics.
RUSH is undoubtedly the most efficient and a kind of tactical idea, which can not only save time, but more importantly, when the team generally does not have a perfect tactical system, giving them more time to attack may not have a better effect than RUSH.
Therefore, in the previous game DEMO, it is easy to see the scene of five fierce bandits holding AK to punch Dust2's B hole and Aztec wooden door, and the outcome is often instantaneous.