A small but crucial game update was just released in CS:GO just before the IEM Katowice Major.

Valve Corporation – the developer of CS:GO – just released the update to cope with an in-game issue where players could identify the location of the enemies through the smoke via their player radar. This patch comes less than 12 hours before the start of the New Challengers stage at IEM Katowice

Normally in the game, when a smoke bomb is thrown, it leaves a cloud of smoke and no players can see through it. But thanks to this issue, players can “partly see” the enemies even though the smoke effect hasn’t dissipated completely. When a smoke bomb is in effect, the player could see enemies through smokes by looking into the smoke and waiting for it to dissipate enough for a red dot to show on their client’s radar. This happens even before the effect of the smoke fully dissipates. Good players, especially pro players can certainly exploit this issue. Once they know the location of the enemies, they just spray their rifles through the smoke into their enemies. Usually, the enemy players will not react on time to this and die. Some players even use zoomed-in radars and key binds to adjust their radars for more accurate spams into smoke.

This issue began to gain attention from the community since the ECS Season Six Finals. In the match between team Astralis and team MIBR, Andreas “Xyp9x” Hojsleth (of team Astralis) killed Marcelo “coldzera” David (of team MIBR) through a smoke. Of course, right after the incident, other pro players have jumped in to criticize Andreas “Xyp9x” Hojsleth, namely Nikola “NiKo” Kovac (of team FaZe Clan) and Epitacio “TACO” de Melo (of Team Liquid). The criticism even climbed up to the point that Epitacio “TACO” de Melo secretly implied that Andreas “Xyp9x” Hojsleth used a particular number of NVIDIA graphics settings that allow them to see through smokes several seconds before it dissipates

Andreas “Xyp9x” Hojsleth, in return, denied knowing anything about the NVIDIA settings. He said that he could see Marcelo “coldzera” David feet on his screen and that there are still some smoke bugs while spectating. A member of team MIBR – Gabriel “FalleN” Toledo – even support Andreas “Xyp9x” Hojsleth by agreeing that every player client displays its “own smoke” that works differently for everyone. Later on, Andreas “Xyp9x” Hojsleth told Nikola “NiKo” Kovac that he’s willing to show him his video settings to prove that he’s not using the NVIDIA settings

Screenshot 5
Replying tweet from Andreas “Xyp9x” Hojsleth

However, this is not the case anymore since Valve themselves have to step out and fix this issue. From now on, no one can make use of this issue to gain easy kill through smoke.