First off, sorry for this late answer. I haven't been here for a while. And others probs can't start anything with smi and or Unity Modding/Hacking.
@hamak63891, are you sure the class in which you did put your loader in is named "Load.cs" and did you check everything else for mistakes (namespace + method)? You can't just invent new names like in Screen 3, they have to be present in your DLL. Without any source I can look at, I can't give you the right settings. Post your Loader Class please in a code block as a reply or in the thread starter.
Also isn't Unturned protected by BattlEye? Using ordinary mono injection will probably slap you.
That's how a Loader Class might look like by the way, if you just haven't one yet:
And that's how you would inject it using smi:
smi.exe inject -p CWClient -a C:\Users\TE\source\repos\CW-Internal-Hack\bin\Debug\CW-Internal-Hack.dll -n CW_Internal_Hack -c Loader -m Load
Have a look at -n (namespace), -c (class), and -m (Load) if you use the GUI version of SharpMonoInjector. Change these depending on how your Loader Class is like.