[Jason shakes his head, still confused by this man who looks and sounds sort of like him. He doesn't want to get any closer; he doesn't know how these portals work. Will they be seen and disrupt whatever is going on, or are they invisible? But he saves himself the worry by finding out he can't even go inside anyway]

Must be... some kinda alternate reality or somethin'? Guess I'm a soldier in this version of things, too. See the dog tag he's wearin'? It's what we use to identify ourselves.