Slick work !
About the cheating question, I have noticed that when trying to join each other’s multiplayer game, incoming players are not allowed into the game if they are using a different dll (i.e. the source code changed). I have played together online with people where everyone built their own dll, but the source code matched exactly. But I think that is what refers to, dll’s are verified in some way (perhaps using some compile-time CRC?). I don’t think that makes hacking the dll impossible, which is why client-to-server RPCs have _Validate and _Implementation and so you do have to validate some things yourself… hoping to learn more about that.