When searching use Image search and the terms improvised armoured ............... will give the most 'interesting' results.
Mining dump trucks are already a 1:1 reality, or if you would prefer a front-end loader:
I dove one of these 100 ton trucks in the Iron Ore mines Mount Newman Western Australia for a couple of weeks back in the early 90's - An eye opening experience!
Add a dozer/mine plough arrangement at the front (the solid wheels would translate any AT mines blast right through the vehicle - trust me, you don't want to be changing one of these tires in the field!
![Wink ;)](http://beyondthesprues.com/Forum/Smileys/clabIcons/wink.gif)
The bucket on the back would afford much armoured protection - divide into compartments for POL, water, food, and ammo;
a 120mm mortar on a 360-degree turntable - to reach out and touch somebody;
at least one ZU-23-2 23mm gun mount for anti-aircraft and engagement of high elevation targets;
a couple of Mk 19 40mm grenade launcher for close protection ;
four banks of smoke/grenade discharges - you don't want enemy infantry/rebels getting under or on this thing!.....
Ha, in hindsight, carting iron ore seems very boring now
![Roll Eyes ::)](http://beyondthesprues.com/Forum/Smileys/clabIcons/rolleyes.gif)
And just think what you could do with the 200 ton 6x6 variant
![Tongue :P](http://beyondthesprues.com/Forum/Smileys/clabIcons/tongue.gif)
M.A.D