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Deleting of ClientRegistry.blob did not help.
Didn't get how to do the solution 2.
Also, I'd like HL3 to be less linear, and not so hard scripted as HL2, that some situation could be solved in at least several ways, for instance, not only fight our enemies, but have a chance to use stealth, or deceive them.
Another point, no matter, if it's sci-fi, or more realistic, it...