Tanks in shallow water

[PantherCub]

I use shallow water for minor rivers.

Also speaking of landings, at Tarawa, a number of tanks got stuck while moving in shallow water, so it would certainly be realistic.

I don't think they can get immobilized, it never happened to me and I moved a large number over a shallow river, if it had been a stream I would have expected at least a few of them being immobilized.