Important note! Before you start, go to system settings, then console settings, then auto start, and disable auto start. The reason for this is your game you put in your drive doesnt start up before you have a chance to hotswap.

1. Get three games. One that you do not need for the Hotswap, such as Halo 3, MW2, etc. Now get Your World At War regular disk and your World at War iso disk.

2. Put what ever game it is that you're not hotswapping (and not your regular WAW either) in your disk tray and let it load.

3. Once it has loaded, press Y and eject at the same EXACT time.

4. You should now see nothing but a backround for the game you chose. If not, repeat steps 2 and 3.

5. Take the game you first put in out of your disk tray.(which should be open at this point)

6. Put in your regular World at War disk and close the disk tray.

7. (You have to be VERY precise when doing this step!) The exact second that World at War loads (right when you see play game or install game) eject World at War.

8. Hover over install game.

9. Put in you World at War iso disk.

10. Just as the disk tray closes, repeatedly press install game.

11. Wait for it to install.

11. Enjoy hosting modded World at War lobbies.

Also, if this works for you please post below.