It sounds like you're referencing a specific of Counter-Strike: Global Offensive (CS:GO), possibly from a non‑Steam or LAN‑cracked edition.
Because of the "Full Edition" packaging, the weapon balancing was frozen. This led to the infamous "One Tap Summer" where professional teams ran five M4A1-S rifles on CT side. The suppressed sound profile, combined with the build's specific audio occlusion coding, meant that shooting from Cave to B site on Dust II was nearly silent to anyone on A site. CS- GO v1.37.2.6 -Full Edition-
: This version focuses on refining gameplay mechanics, ensuring a more balanced and engaging experience. It includes adjustments to weapon stats, smokes, and flashes, which are critical elements in tactical gameplay. build or release It sounds like you're referencing
: Including all updates and DLCs up to that specific version number (1.37.2.6). Modern Context: CS:GO vs. CS2 2019-11-22 Patch - Liquipedia Counter-Strike Wiki Valve Corporation