For "Die Spies", maybe you could enhance Objective #2 (where you have to find the files on German agents), by placing more files around the school for Strogov to find.
The reason is, the opening cutscene says that the files can be found in the principal Hans Himmel's safe, but in the actual level, you can't interact with that safe and the files are located in two separate locations.
Can you make the various safes around the school unlockable?
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