The side quests feature some of the best content Stalker 2: Heart of Chornobyl has to offer. Gray's Last Hunt side quest is no different, during which players get a chance to go toe-to-toe with a unique mutant boss called the Hornhead. It's a really tough mutant to beat, given how the bullets just bounce off the parts of its body that are covered in armored scales. However, there's a way to take it down quickly; let's discuss how.