The bass does this behind the guitar at the very beginning - Just strumming
G)--------------------------------------------------------------------------------------------------------------------
D)-------------------------------------------------------------------------------------------------------------------
A)---------------------------------------------------------------------------------------------------------------------
E)--00000000-00000000-00000000-00000000-00000000-00000000-00000000-00000000--

    "Back at base bugs in the software, flash the message something's out there..."
G)--------------------------
D)--------------------------
A)--------0--2--------0--2--
E)--0--2--------0--2--------

G)-------99---------99-------
D)-----------------------------
A)-----------------------------
E)--0-----------0-----------0--

G)---------------------------------------------------
D)--2-2---2---4h6p42------2-2----2------------
A)------4---4-----------------------4----4--2-2-24--            x3
E)-------------------------------------------------------

Then…
G)--------------------
D)--2-2---2---4h6p42--
A)------4---4---------
E)--------------------

G)-----------------------
D)--2-2---2--------------
A)------4---4--22222222--
E)-----------------------

     "99 red balloons floating in the summer sky, Panic bells its red alert..."
G)---------------------
D)---------------------
A)------------0>---2>-- x10
E)--0>---2>------------

G)--------99--------99-------
D)----------------------------------
A)------------------------------------
E)--0-----------0------------0--

G)------------------------------------------
D)--2-2---2---4h6p42----------2-2----2------------                            x3
A)------4---4---------------------------4-----4--2-2-24--
E)-------------------------------------------------------

Then….
G)--------------------
D)--2-2---2---4h6p42--
A)------4---4---------
E)--------------------

G)-----------------------
D)--2-2---2--------------
A)------4---4--22222222--
E)-----------------------

   "99 Kriegsminister streichholz und benzinkanister..."
G)----------------------
D)----------------------
A)------------0>---2>--- x7
E)--0>---2>-------------

On the 8th time do:
G)-----------------------------
D)-----------------------2-----
A)------------0>---222-2-------
E)--0>---2>-----------------0--

   "It's all over and I'm standing pretty in this dust, that was a city..."
G)----------------------------------------------------------------
D)----------------------------------------------------------------
A)----------00--22----------00--22----------00--22----------------
E)--00--22----------00--22----------00--22----------0-(Let-ring)--