1. Play some world in the Workbench.
2. Paste this into the console and execute it:
```
GetGame().GetCallqueue().CallLater(Print, 20000, false, "test", LogLevel.NORMAL);
GetGame().PlayGameConfig("{83D06A42096F671C}Missions/MpTest/10_MpTest.conf","");
```
Using Print() in CallLater doesn't actually work properly because it only prints some "unknown variable" thing, but that doesn't matter here.
3. MpTest will be loaded and 20 seconds later, the unknown variable message pops up.