AREA 88

In a cruel twist of fate, talented young pilot Shin Kazama is tricked into serving as a mercenary for Area 88. A hell on Earth where men survive by gunning down anyone who stands in their way. To return home, Shin must sell his soul to the battlefield and pave the road back to Japan with the corpses of his fallen opponents. (Source: Discotek) — Description from AniList community (anilist.co).