The reference to and "solid feature" appears to relate to a specific unofficial mod or community-driven content pack for the Helldivers series (most likely the original HELLDIVERS 1 or a fan project for HELLDIVERS 2 ).
Be cautious when downloading .rar files from unofficial sources, as these are not supported by the developers and may contain malware or cause game instability. Helldivers.a.New.Hell.Edition.part2.rar
While "New Hell Edition" is not an official Arrowhead Game Studios release, it often refers to: The reference to and "solid feature" appears to