Until recent years , it was noted for secrecy and a policy of limited , selective membership .
The UVF 's last major attack was the 1994 Loughinisland massacre , in which its members shot dead six Catholic civilians in a rural pub .
Until recent years , UVF was noted for secrecy and a policy of limited , selective membership .
The UVF 's last major attack was the 1994 Loughinisland massacre , in which its members shot dead six Catholic civilians in a rural pub .