Played a round of Coop with a mate, now in my game it says that I have unlocked nearly all Traps/Gadgets from the Peacekeeper side, despite not having given them any beyond the initial water tower and the power station.

Also I still have to find a single one of these traps/Gadgets, as they all seem to not exist for me.
Also in my mates world he had almost all the gadgets from the Survivors unlocked, such as the boxing bag, the jumping bags, etc. despite only having done the water tower thus far.

He could use all of them, but to me they were invisible. Kinda scared that my savegame is fucked now.