Ok. I've had a rethink and gone for much larger scale.

This isn't finished. It's just set up ready for details and possibly snowy rooftops.

Oh wow guys!

Has anyone else checked out the new ambient lighting setup? You can set the ambient light (in this case dark blue) when you pick the colour of the shadows in the finalize effect.

What a smashing card, Ricko! Wonderful :D

Not much further, but there's some work to make the various shades of white look ok with each other.

You can make battlemaps in CC3 alone these days. All the dungeon tools are built in.

There is also a built in dungeon style - Jon Roberts. If you have the whole bundle you also have Dungeon's of Schley (Symbol Set 4), which is one of the main styles I've seen being used for all kinds of dungeon maps ranging from house plans to caverns.

I think there are also some of the dungeon style annuals included in the full bundle.

The easiest way to see what you have in the way of dungeon styles is to open a new map and pick the Dungeons map type with Decide Settings myself. That will list all the available templates and give you a small thumbnail of each one as you select it.

(I have everything, so my list is probably a bit longer than your friend's will be, but I have picked the Jon Roberts style to show you one I know you will definitely have, even if you only have the core app).