i'm pretty sure this is 99.9% correct it is pretty simple and does not take long to learn.
(palm mute Low E)
E)--0-0--0-0--0-0--0-0--------0-0--0-0--0-0--0-0--]
A)-----7----5----3----1--2h3-----7----5----3----1 ]
D)----------------------------------------------- ] X2
G)----------------------------------------------- ]
B)----------------------------------------------- ]
E)----------------------------------------------- ]
[ Tab from: https://www.guitartabs.cc/tabs/m/misc_computer_games/doom_theme_tab_ver_6.html ]
(palm mute A)
E)------------------------------------------------]
A)--0-0--0-0--0-0--0-0-------0-0--0-0--0-0--0-0---]
D)-----7----5----3----1--2h3----7----5----3----1--]
G)------------------------------------------------]
B)-------------------------- ---------------------]
E)-------------------------- ---------------------]
(palm mute Low E)
E)--4-4--4-4--4-4--4-4--------2-2--2-2--2-2--2-2--]
A)---------------7----5--6h7---------------5----3-]
D)-----6----4--------------------4----2-----------]
G)------------------------------------------------]
B)------------------------------------------------]
E)------------------------------------------------]
there all done hope you enjoyed it :)
