Well, a bit of a gap, been finishing off all my assignments for the year. They're done now which means plenty more time to work on this.
First of thanks for those tips on the Humber Minos, I plan on detailing the back with some props a bit like the survivor dens in L4D. I'm undecided on adding some decals, I could do but it would mean a third texture map on the model which seems a little excessive, I'd be able to write some text on the outside though which would be a nice touch. I also added the wear and tear to the front, and the outside has a normal and specular on it now.
And here's a bit of a photo montage I've been scrubbing together to get an overall feel of how I'd like this thing to feel. I'm gonna work on this, and maybe do a couple of others over the next few days to decide where I'm gonna head with this.