I could not expect a 2d game. (as you point out) But I did expect a 3d game with an isometric view, with a fixed camera view, and designing the levels in accordance with the fixed view. Or the very least, all the levels are fleshed out from the starting camera view. Eg. I have played a lot of Dawn of War 2. The multiplayer maps are 3d and you can rotate. But you can play all the maps with the starting camera view, and the maps seems to be designed with that in mind. Or like Fallout Tactics that is like a borderline 3d game, the levels are 3d, but a fixed view.