Hammer Editor - "Unexpected End of File" On Load, Reading Chunks 33%

Solution 1:

Your map file is corrupted.

You can either put a closing } into line 18838 (the one the game complains about) or if that doesn't work you can replace it as follows:

• rename your <mapname>.vmf to something else (or make a backup)
• locate the <mapname>.vmx in your mapsrc folder and copy it over
• rename the vmx extension to vmf
• try to load the newly renamed <mapname>.vmf in Hammer

If that still doesn't work your last resort lies inside your <HammerFolder>/autosaves. If you have some autosave files you can try one of these to recover your map. They might not be the latest version, but still better than nothing.