a question...

[Seraph]

I was thinking that there could have been 'anomaly' structures placed around Earth as well as on the moons of Mars. The fact that the one's that the military knew about were either under major cities or had been stolen and hidden by the Nazis in world war 2 meant that they couldn't do any major experimentation on them.
But when anomalies were found on Phobos the military could experiment on those with no probs. Then either the gateways on Earth opened accidentally as the Phobos anomaly was triggered or the gateway creation was deliberate - the military, or some shadowy elite, knew exactly what they were doing.

More details in the Doom section on:
http://www.phobosanomaly.com
for those interested in the Doom plot.

[dr_st]

Yes, after "Gotcha!".

HAH! You mean after Monster Condo.

No, actually, I mean after "Gotcha!". Between it and "Nirvana" (MAP21) the following intermission text appears:

YOU ARE AT THE CORRUPT HEART OF THE CITY,
SURROUNDED BY THE CORPSES OF YOUR ENEMIES.
YOU SEE NO WAY TO DESTROY THE CREATURES'
ENTRYWAY ON THIS SIDE, SO YOU CLENCH YOUR
TEETH AND PLUNGE THROUGH IT.

THERE MUST BE A WAY TO CLOSE IT ON THE
OTHER SIDE. WHAT DO YOU CARE IF YOU'VE
GOT TO GO THROUGH HELL TO GET TO IT?

That, and the sky change thing, make it fair enough to treat this point as the episode change point, where you go into hell once more.

[Katgut]

Yes, after "Gotcha!".

HAH! You mean after Monster Condo.

No, actually, he meant after opening the package.