Originally Posted by
Houghten
Actually, the answer is "no" to all three.
Apocalypse contains only the Tesseract Vault (the super-heavy C'tan-prison Monolith), not the Tesseract Ark (the singularity-powered gun carriage).
It doesn't contain either kind of Pylon. War Zone: Damnos has rules for the super-heavy kind but they're very different to those found in IA12 or IAA, for no particular reason.
Tyrendian might have been thinking of Imperial Armour Apocalypse, which has rules for Tesseract Arks and Sentry Pylons but not for the Nightshroud.