Game of survival

I first saw this in the 90s on a vhs. Revisited it recently. This exploitation film is loaded with awful acting, bad effects but it is violent, claustrophobic n very brutal (the rape scene). The less said bah Findlay's direction, the better. Basically it is a mix of Assault on Precinct 13 n Demons 2. A gang with their lol leather attire kills n assaults tenants of an isolated shabby building. With the telephone lines cut off n no help from the outside world, they r isolated n terrorised in their own building but they do hold their fort n tries to fight em off with terrible consequences. It has some brutal kills with over the top blood n cheesy effects. The hottie Corinne Chateau does show her boobs but in a miss n a blink situation. The names of characters r poppo, chaco, chula, monk, nines, etc.