If I get the digital download version which comes with the expansion pass would I be able to play on the dlcs with my alternate psn like how call of duty is? Or will I have to buy a separate pass for that like how defiance or DC universe was like?
If you have assigned your console as your "primary PS4" for the account you've purchased the content with, yes. If not, it's only on a single account. For more clarification, you should seek [url=http://us.support.sonyentertainmentnetwork.com/]Sony Support[/url].