The COD2 editor has a new prefab feature which will take a bit of getting used to, but techno2sl show us how it works:
When editting your current map,
right click the 2d grid and select> misc>prefab
A mini browser window will appear, you must then direct it to the folder:
C:\Program Files\Activision\Call of Duty 2\map_source\prefabs
Once inside the prefabs folder other folders will direct you to what you might be looking for, i.e:
the "mp" folder contains prefabs of gametypes like CTF (see the Gametypes tutorial for more details)
Once you have selected the prefab that you would like, you can then: drag it into position, rotate it etc.
When you want to edit it, you can then select it and right click the 2d grid> "Enter Prefab"
Or select it and click "Edit"> "enter prefab".
You will then be taken "inside" of the prefab, where you can now edit it and then make sure you click "File", "save" before you click "edit"> "leave Prefab".
// Prefabs are simply ".map" files that you could make yourself aswell by simply saving somehting and loading it as a "misc">"prefab".
Once you have entered and saved a prefab it WILL change the original .map file of the prefab, therefor if you have one or more of the same prefab in your map, they will be exactly the same. To avoid this, you can simply copy the prefab and change its name.
EXAMPLE::
Load House01.map as a prefab - change it and save it in your map, then:
Copy the .map file of it and paste it with a new name, i.e: house02.map - now you can load this new prefab into your map and change it without changing the other house.