It's clearly a Horton HO-347:
What is this game? Why have I not played this piece of Dieselpunk awesomeness yet?
That would be dust or dust tactics, much of it is out of print now though unfortunately.

The games an alternate ww2 most of it is ground and troops based with walking tank mech's. There are places still making the models I belive they do most of their stuff though kickstarters and things now and Lionsgate recently picked up the rights to make a movie based on the game.
Edited by Dodt