Few minor problems with static tank objects

[draconus]

Warehouse > Tank 1 - rails are rendered depending on the view angle, while the other side is not visible, but after rotation these parts are visible, while the other not

Structures > Chemical Tank A - rails are desynched with ladder about 90 degrees of object rotation

Structures > Fuel tank - the dirt under the tank is semi-transparent for self model

tanks.trk