To do this open Steam and go to your game library, right click on garry's mod and chose properties> Local Files> Verify integrity of game file.
Step 4: If you still have errors after installing and subscribing to all the above, verify game file integrity. Step 3: subscribe to Wolvin's Prop Hunt: 'ENHANCED Version 15 Revision I' found here ( ) and Wolvin's Prop Hunt: Enhanced Addons ( ) again making sure that each addon has a blue and white check mark and not a green +. Step 2.5: subscribe to all newly added maps. Make sure ALL addons have a blue and white check mark next to them and not a green +. Step 2: Subscribe to Dinkleberg's prophunt addons found here ( ).
Step 1: install css content, this can be done by installing the game Counter Strike Source, alternatively you can follow this tutorial( ) if you do not already own the game.