RE: Tank in the snow?
Well, what kind of tank?
I run the HL Panther G, Jagdpanther and the Stug in snow for six months a year. The Stug has a big open area where the tracks can get snow inside so I tape it up with metal duct tape. Not the grey cloth stuff Red Green uses, the metal stuff. It seals the Stug up enough for fun. The other two needed no fix-ups to run in snow.
A tip: let the tracks cool to outside temps. before running the tank to keep the snow from building up.