The PvP stuff is only if you build an FOB, your actual motherbase isn't invaded.
OK, cool. So does FOB get me anything in the single player part of the game or does it only exist for PvP? Basically I'm just wondering if you miss out on single player content by avoiding PvP.
Is that an actual thing? You can sign up to defend someone else's base when it gets attacked? Man, I'd like to know more about the multiplayer stuff but I've been avoiding most of the press about the game.I will be wanting to join NeoGAFs community for FOB bases. outer GAF as we form a team to defend each others FOBs http://steamcommunity.com/id/Strazytski/
Thanks for the answers.