I only have the core and the 3 big box expansions, but really wanted to play raid. So I fudged the board a bit and created my own map to play - as close to the real map with the pieces I own. And had a blast.
So I came up with new random maps, just based on what looks good, and connects, and play with these maps and have had even more fun. A few house rules based on how the 12/4 tokens are placed and where the deployment zones are, but it's not like the app tracks movement. I think there is a ton more fun to be had with this