Wolves in the Throne Room-Vastness and Sorrow (Intro)

Here is the intro to Vastness and Sorrow from the album Two Hunters.

Standard Tuning.
4/4 time.

G1 and G2 (tremolo picking for G2)
----------------------------------------------------------------|
-16--15--13----16--15--------16--15--13----16--15--12-----------|
-----------------------12---------------------------------------|
----------------------------------------------------------------|
-/6--\5--\3----/6--\5--------/6--\5--\3----/6--\5--\2-----------|
-----------------------\3---------------------------------------|
|G3
----------------------------------------------------------------|
----------------------------------------------------------------|
----------------------------------------------------------------|
----------------------------------------------------------------|
--3-------6--5----------6--5--3-------6--5--2-------6--5--------|
----------------3-----------------------------------------------|

feel free to pick up where i left off, im still new at this.