Howitzer from Crash Course

Hi guys I was wondering if anyone can get and release the Howitzer from Crash Course in L4D.

Link to picture;

Either that someone could check the L4D files or maybe it is part of the map.

Use a vpk extractor on your current updated install of l4d, put extracted files into gmod, browse for props_vehicles and profit.

Can I have a link to a good vpk extractor?

There you go ^^

Edit: Thats better ^^