The X-COM Files: Victory checklist?

[asdfgtref0880]

Been really enjoying the pack but I've gotten to a point where I'm not sure what to do, I've done the four main cults to completion, I've researched "monsters the final solution" and I've completed Atlantis and researched "cydonia or bust". I've researched a commander of at least 4 of the races including ethereal and the only thing I don't think I've done is the cult of the apocalypse and that's only because I'm not sure how to progress, is this cult mandatory or am I missing something else? Any help is appreciated.

[krautbernd]

Cyberweb/Dimension X?

[Solarius Scorch]

And the undersea arc.

[asdfgtref0880]

Cyberweb/Dimension X?

ah yes, I totally forgot about that but I did complete it and got an end screen for it

And the undersea arc.

does that arc not end when you take atlantis and get the stone?

[krautbernd]

Zombie arc? Syndicate? Apocalypse?

Otherwise i think you're probably good to go, give 'em hell on Mars (doomed marine not included).