AK a link to Soviet lift capacity, As I saw very little of any use in an opposed landing in the Red Fleet. Where are the LST class ships in fact there are barely any modern ships in the Pacific Fleet circa 45. Also by 45 the WAllies realized the USSR was a potential adversary,Why give them yet more territory by supplying said lift not only to move there troops but to there supplies when every last ton of shipping was needed for Coronet and Olympic. Where not even get into the fact they have ZERO experience in opposed amphibious ops.
So basically as plausible as the Sea Mammal that shall not be named