Without more specific information on the game, providing a detailed guide is challenging. However, I can offer some general advice on how to approach strategy games from this era, particularly those set in World War I:

If you're looking for details about this release, here are a few points:

Musical Style: Critics describe the sound as "old school death/thrash" that harkens back to the late 1980s. It features a mix of technical metal, melodic riffs, and heavy, emotional vocals.

. Your RAR file likely contains the full album rip from the original 1995 CD or one of its many reissues by labels such as Talisman Music Sevared Records Neurosis Inc. Discography: Vinyl, CDs, & More - Discogs