Tune to Dropped D down a whole step.

D-------------------|-------------------|--------------------
A-------------------|-------------------|--------------------
F-------------------|-------------------|--------------------
C-----2-3--2--------|------7-8--7-------|-------2-3-2--------
G---0---------3-0---|----7--------10-7--|----0--------3-0----
C-0-----------------|--7----------------|--0---------------3-

Repeat that riff a few times and then play this:

D--------------|
A--------------|
F--------------|
C-----3-----5--|
G---3-----5----|
C-3-----5-----0|

Sorry it ain't exactly perfect but it's the best I could do.