It is not easy to memorize all these calls. However, we will draw your attention to the points you need to pay attention to, starting with the most important ones. For all the remaining callouts, it will be enough to play that map a lot.
CS2 & CSGO Callouts
Here you can find all the callouts of all the maps you can find in the CS2 competitive map pool.

Ever since its addition to the official tournament map pool, the sunny skies of the Anubis map has garnered increasing popularity among CS:GO players. Despite being one of the more challenging maps to learn due to its numerous callouts, mastering them is not as tough as it may seem at first.

When we talk about bomb defuse maps, Dust 2 (II) is by far the most popular one. Since it was added in 2001, it has been a classic in CS 1.5, CS 1.6 and CS:GO, and if you want to take your gameplay experience to the next level, it’s key to learn how to use Dust 2 callouts.

Italy is a classic Counter-Strike map set in a picturesque Italian village featuring narrow streets, tight alleyways, and cozy urban architecture. The map revolves around a hostage rescue scenario, where Counter-Terrorists must infiltrate the town to safely extract hostages held by the Terrorists.

Vertigo is not the newest map in the Counter-Strike arsenal, but it is a more recent addition to CS:GO’s competitive Active Duty map pool. Positioned near the summit of a skyscraper under construction, this demolition (bomb defusal) map offers plenty of unique challenges.