5. Vektor - Outer Isolation - (2011)

This to me is technical/progressive thrash metal at its best. There may have been a number of landmark bands/albums for the progressive thrash metal genre before these guys or this album which was their second, but this one to me nearly perfects what I ever could see this take on thrash metal being. Plus there's some good influence to their sound from black metal, and maybe some other genres, which has stood to make them just that much better and more interesting.