Nice heavy metal riff, this one. Distort it, but not too heavily.
Look out for a full guitar tab coming very soon, but get this bit off first:

E------------------------------------------------------------------------------------
B------------------------------------------------------------------------------------
G------------------------------------------------------------------------------------
D--12h14-12h14-12h14-------12h14-------12--12h14-12h14-12h14-------12h14-------12----
A--12h14-12h14-12h14-12h14-------12h14-----12h14-12h14-12h14-12h14-------12h14-------
E--12----12----12--------------------------12----12----12----------------------------