First you must download CoDTools.exe from this site or elsewhere. Once you have downloaded this, double click it to start the installation. Install it to your Call of Duty folder.

Once finished start CoDRadiant. Immediately a menu will pop up asking for your qe4 file. This is located in Call Of Duty/tools/bin/ and is named cod.qe4; select this.



Now the editor should have opened up. Go into Edit ? Preferences: Under views ? rendering. Select the 3rd choice along with 4 equal windows.

In game path ? tool settings, select your CoDMP.exe file from your Call Of Duty folder.

It is also important you UNTICK "load last project on open" as this causes various problems.



Now click ok, close CoDRadiant & start it up again. If it asks for your qe4 file again, Select it again.

now your radiant should be split into 4 windows & a console box. Press escape to remove the console box for now.

Now go into File - Project settings & change your maps path to tools/game/main/maps folder. (you may have to make this folder in advance).



Now click ok to return to CoDRadiant.

Press F to open your filters & tick "Clip" & then "Update"



You are now installed & ready to use CoDRadiant. Have fun!