Is it true or fake death when shooting?

According to the query of Douban film, I learned that Hell Warrior was really dead at the time of shooting, not feigned death. This film was produced by Russian Wagner Mercenary Company, which reflected their real experience and battle scenes in the Ukrainian war. The death scenes in the movies all happened in reality, and no special effects or props were used. The screenwriter of the film, also a member of Wagner's mercenaries, died on the battlefield even before the film was released. This film is regarded as a hard-core military documentary, which shows the cruelty and truth of war.