UMUR
"Warriors of Doom" is the 3rd demo by US death metal act Rigor Mortis. It´s a one-track demo recorded in November 1987, but initially it wasn´t released. It wasn´t until the "Rigor Mortis" single was released in 1990, that the track officially saw the light of day and by that time Rigor Mortis were known as Immolation. The track is also available as part of the Immolation compilation album "Stepping on Angels... Before Dawn (1995)".
Compared to the thrash influenced early US death metal style on the "Decomposed" (recorded in July 1987), the "Warriors of Doom" track is slightly more death metal tinged, but still with a raw thrash influence. The sound production is of a pretty good quality (for the time) considering this is a demo and the musicianship are on a good level too.
While this demo never saw an official release, I´m sure there are copies out there. At the very least the copies the band made for themselves. I guess those copies are what you´d call a real collector´s item. A 3 star (60%) rating is warranted.