Hello,
I did not receive any pre-order, beta participation, or VerminTide owner items. All I got was the Imperial Edition items. I played in the beta and the game was installed and attached to my steam account before the release of the open beta and owned Vermintide 1 and 2 from before I got DT on this same steam account.
I was missing my soundtrack too, but partially fixed it by installing from SteamDB. Now I can download it, but it doesn’t say the DLC is credited to my account.
This was on Steam and my account is 357 Magnum Ace, Steam ID: 76561197993791411
I also want to bring up that I am still waiting on receiving an item that just disappeared during the beta. That topic can be found here