Name the file and press Create.

You will see the "NO MAP LOADED" text. If you don't, i don't know how.









To load a map, press Ctrl + L.
This should pop-up.
↓










Select from the tab (make sure you have at least TF2 installed)





Or search. (i.e ctf_2fort.bsp)

If you've followed these steps, the preview screen should have a map on and the "NO MAP LOADED!" text should be gone.


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