Escape from Tarkov is a hardcore extraction shooter by Battlestate Games where Russian-speaking PMC and Scav characters shout status callouts in combat. CHVK is a transliteration of the Russian abbreviation for a private military company, and this line is one of its injury callouts warning that the character is bleeding heavily. As Tarkov clips spread on Twitch and YouTube, short Russian callouts like this became reusable reaction sounds, prized by editors because the urgency is clear even for viewers who do not speak Russian or play the game.