This is the official post on the Warhammer Community site that they keep updating with new Errata and PDFs as they release. Be sure to check this link first for all current information: Shadow War: Armageddon Downloads
Here are some of the official pdfs available from GamesWorkshop (2017.05.11):
That said a Battlesuit would seriously wreck the place. I think we're good with Stealth Suits for insurgency ops. That said, I'd love to have a suit indeed - but it would be rough on most factions facing a weapons platform like that.