Actually, I think it would be cool and introduce a new naval landing perspective if the 75mm Shermans were enabled from TGs to cover landing forces.
https://en.wikipedia.org/wiki/DD_tank As far as implementing, they may need to coded as floatable like the lvts - perhaps added as a new variant. The short barreled 75mm lvt4's we have are simply useless for pretty much anything.
If coding already allows GVs other then LVT's to float, it becomes even easier to implement.
