Hi all, love this game, i have met Pietro and his workshop and stocked up on bullets and stuff, and have been playing solid now for a few hours. My question is how do i get back to Pietro to upgrade stuff, i thought it might let me buy more ammo through the Journal but it just tells me i have 440 coins. Desperately need some upgrades, do i have to go back through the wall of light to revisit Pietro? surely not....or have i missed the plot somewhere? HELP Guys...)

You can only get back to him between missions.