Here is Bluurg Tapes release no. 7 from 1981. My tape was marked Warminster 1980-1981 but as it turns out it is the Demolition War Pts I-III tape with all the tracks being recorded in Warminster in those years. Tracks 1-5 were recorded live and the rest is a rehearsal recording. There are a couple songs that didn't get released back in the day. Track 22 - Song No. 35 was officially released on the Unfinished Business ep which was released in 1998.
Bluurg Tapes discography here: http://www.killfromtheheart.com/labels.php?id=14
More info here: http://www.discogs.com/Subhumans-Demolition-War-Parts-I-III/release/417268
setlist [from cassette tape]
01. All Gone Dead
02. Germ
03. Zyklon-B-Movie
04. Big Brother
05. Human Error
06. Parasites
07. It's Gonna Get Worse
08. Drugs Of Youth
09. So Much Money
10. New Age
11. First Aid
12. Animal
13. Nothing I Can Do
14. Killing
15. Trowbridge Park
16. Animal
17. Society
18. Minority
19. Mickey Mouse Is Dead
20. Sid
21. Peroxide
22. New Age
23. Song No. 35
24. Pisshead