In the pic below, the two big rooms at the top are cargo bays, with an airlock in between; a long corridor leads from the airlock which has 2 smaller corridors branching off and there are 4 other rooms at the bottom of the pic (which is going to be the front of the ship, btw)
Below is a close up of the exterior of the airlock (with Zombie-ME for scale as usual), which the only room that I've done a roof and any of the exterior for so far. There is a roof for each room - the intention being that you can reveal parts of the ship as they are reached - as well as exteriors
The doors in the kit are designed to be removed as needed, and the pic below shows the exterior airlock door partially removed showing Zombie-Me's base
I don't have a particular game in mind for this model (other than some kind of Space Hulk thing) but I've had it for ages and wanted to build it all that time, so I've finally started it!