Desert Terrain.
Installation Sprite.

Now, how do they open and close? I do not know.
I need the answer.

You mean the doors and guns? Well...you don't need sprites..that can cause issues, the guns and doors have been converted to units that you can use on any tileset...once you place them just use the "enable(on)/disable(off) Doodad State" trigger.

If your asking about the gates, sharf gave the right answer for that too.

Thanks mate.