There is information somewhere that the inspiration for this track was Warhammer 40k and the idea of some big bomb that is able to infect the whole planet.
Not that Dave is a player, but he liked the idea.
Virus Bomb
—
Warhammer 40k
A Virus Bomb is a potent Imperial biological weapon and weapon...
[Disclaimer: The lyrics shown here are transcribed by fans and members of the Genius community. They are not published, verified, or authorized by the band, and as a result, cannot be guaranteed to be accurate.]
In the depths of hell I see
Ignite the very air
Betrayal burning an atmosphere in flames
Ignite the very air
This ancient's last act is defiance
An atomic weapon to slay everybody
Ignite the very air
Betrayal burning an atmosphere in flames
Ignite the very air
This age’s last act is defiance
Virus bomb
Virus bomb
Ignite the very air
Betrayal burning an atmosphere in flames
Ignite the very air
This age’s last act is defiance