Looks like you didn't install it right.
You need:
*Source SDK Base 2013 Singleplayer (selected "upcoming" in properties-beta) from Steam library - tools.
*In your sourcemods folder you also need unpacked the main mod for Salvation - Raising the Bar Redux latest version. Just unpack folder with RTBR to sourcemods.
*And in the same sourcemods folder you need to unpack Salvation. Again, just unpack 7z archive with mod there.
RestlessDreams91
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