The tachanka was a horse-drawn machine gun platform, usually a cart or an open wagon with a heavy machine gun installed in the back. A tachanka could be pulled by two to four horses and required a crew of two or three (one driver and a machingun crew). The tachanka went on to see service with the Red Army well into the Second World War and was also adapted by the Wehrmacht as an anti-aircraft platform.
The model below is from Pendraken (10mm) and belongs to my URSS Army. With this model I´m also entering the Pendraken 2012 Painting Competition.
My soviet forces are building up for the 2012 Ambush Blitz Campaign - (Kursks 1943), to be held in September, in Espinho. Yes, in 1943, the tachanka was still in the OOB of some soviet cavalry units.