d3xp issues

[lkw657]

I was trying to play ROE coop and ran into the following issues, some of which blocked progression

• Client can't pick up a movable item after the host has picked it up e.g. shotgun on first map (also affects the base game, but it seems to use less movable items)
• Helltime not working for clients
• Don't start maps with the artifact
• Artifact keybind missing from multiplayer menu
• Various unknown string ids, mostly sound settings
• Sometimes the cinematic marine doesn't seem to be destroyed on clients, but I haven't worked out how to reproduce this reliably

I have fixes for some of these I can PR if you are interested.
Is there a reason the pak file contents in the repo seem to be out of date with the latest release?