I prefer Sketchup myself. it is an easy to use program and the results can turn out pretty well if you know what you are doing.
the scope is small yes, but it is powerful. the scopes maximum zoom is about 12X with the minimum zoom being 1.5X. The scope is streamline to go with the rifle, but it is still powerful. The idea of the gun is so that Ro∆ther would be able to both snipe from a good distance while but still be able to pick up and run, The curve on the front is to be used as a grip.