Track: The Doom 3 Theme
Artist: Tweaker; Chris Vrenna and Clint Walsh

Tuning: Drop D (D A D G)

Okay, I saw that nobody had tabbed this, and since it does own your soul..

Intro - Bass comes in at 0:05

G|-----------------------------|-----------------------------|-----------------------------|
D|-----------------------------|-----------------------------|-----------------------------|
A|-----------------------------|-----------------------------|-----------------------------|
D|------0-0-0-0--0-0-0-0-------|-------0-0-0-0--0-0-0-0------|-------0-0-0-0--0-0-0-0------|

Riff A
G|-----------------------------|-----------------------------|-----------------------------|
D|-----------------------------|-----------------------------|-----------------------------|
A|---3-5---5/6----5---3-5---0-1|---3-5---5/6----5---3-5---0-1|---3-5---5/6----5---3-5---0-1|
D|-0-----0------0---0-----0----|0-0-----0------0---0-----0---|0-0-----0------0---0-----0---|

G|-----------------------------|-----------------------------|-----------------------------|
D|-----------------------------|-----------------------------|-----------------------------|
A|---3-5---5/6----5---3-5---0-1|---3-5---5/6----5---3-5---0-1|---3-5---5/6----5---3-5---0-1|
D|-0-----0------0---0-----0----|0-0-----0------0---0-----0---|0-0-----0------0---0-----0---|

G|-----------------------------|
D|-----------------------------|
A|---3-5---5/6----5---3-5---0-1|
D|-0-----0------0---0-----0----|

[Break]

Riff B
G|-------------------------------|-------------------------------|-------------------------------|
D|-------------------------------|-------------------------------|-------------------------------|
A|-------------------------------|-------------------------------|-------------------------------|
D|-0--0-010--8-8-5--5-565---5-5-3|-0--0-010--8-8-5--5-565---5-5-3|-0--0-010--8-8-5--5-565---5-5-3|

Bridge
G|--------------------------------|-------------------------------|-------------------------------|
D|--------------------------------|-------------------------------|-------------------------------|
A|--------------------------------|-------------------------------|-------------------------------|
D|-0----------0----------0--------|-0----------0----------0-------|-0----------0----------0-------|

G|--------------------------------|-------------------------------|
D|--------------------------------|-------------------------------|
A|--------------------------------|-------------------------------|
D|-0----------0----------0--------|-0~~---------------------------|

You can either play Riff D instead of C here, or chug along with the guitar:

Riff C
G|-------------------------|-------------------------|
D|-------------------------|-------------------------|
A|-------------------------|-------------------------|
D|-000333777333555333222000|-000333777333555333222000|

G|-------------------------|-------------------------|
D|-------------------------|-------------------------|
A|-------------------------|-------------------------|
D|-000333777333555333222000|-000333777333555333222000|

Riff D
G|------------------------|------------------------|
D|------------------------|------------------------|
A|------------------------|------------------------|
D|-0--3--7--3--5--3--2--0-|-0--3--7--3--5--3--2--0-|

G|------------------------|------------------------|
D|------------------------|------------------------|
A|------------------------|------------------------|
D|-0--3--7--3--5--3--2--0-|-0--3--7--3--5--3--2--0-|

Riff B
G|-------------------------------|-------------------------------|-------------------------------|
D|-------------------------------|-------------------------------|-------------------------------|
A|-------------------------------|-------------------------------|-------------------------------|
D|-0--0-010--8-8-5--5-565---5-5-3|-0--0-010--8-8-5--5-565---5-5-3|-0--0-010--8-8-5--5-565---5-5-3|

Riff E
G|------------------|------------------|------------------|
D|------------------|------------------|------------------|
A|------------------|------------------|------------------|
D|-0-0-0-0--0-0-0-0-|-0-0-0-0--0-0-0-0-|-0-0-0-0-0~~------|

Obviously this tab is open to Corrections, I'm not 100% sure of most of it myself.

Enjoy!