Porting the cut NPC's and weapons to source sdk 2013

[tempuser2]

Hey, I've been currently working on a beta mod and I wanted to put all of the beta weapons and npcs into source sdk 2013, but I've tried countless amounts of times but it never worked, I even tried putting the .cpp files of the NPC's and weapons into the solution of games.sln, but that instead made a mess of errors. So is there any tutorial, or pack that allows me to port them successfully?
I'm a beginner in modding so I don't have experience in changing codes or whatever. Anything helps