Cooking for UDK

I attempted to cook an alpha version of my UDK Game, Zombie Road, this weekend but soon ran into problems with missing scripts and packages. So here is a small check list of things that needs to be done to fix it, beyond adding things to the .ini files.

1. Compile game in frontend.
2. Cook game, don't forget adding your maps to the maplist.
3. Go to your UDKGame\Scripts folder and copy your game's .u file, in my case ZombieRoad.u, to UDKGame\CookedPC
4. Copy all used packages from UDKGame\Content to UDKGame\CookedPC which would be things like maps, weapons, vehicles etc.
5. Package game in Frontend.
6. Done

Up to step 2 is easy to find. Step 3 you can find on the UDK forums if you do the correct searches. Step 4 is trickier.
Hopefully this saves someone else the trouble of finding this out the hard way.