This seems to be one of those games that few slightly below the radar.
It's the sequel to Achtung Panzer: Kharkov 1943, I played the demo (Kharkov 1943) but couldn't get in to it but for those that liked it, good news a sequel.

Demo in the article.
Code:
http://www.pcgamer.com/2011/11/03/achtung-panzer-operation-star-finally-released-demo-available/