Drape it over the turret or the rear---reference photos always help. I would consult google for that.
If you've got the Verlinden set, they will come with instructions. If they're decals, you can just place them over foil and then bend them to conform to the surface contours. Some people just paint them on foil and lay 'em down. You can also do it with tissue and white glue, much in the way you'd make a tarp or blanket roll.