Tunis is allied, so no amphibs are needed, just regular transports. it is best explained here. And maybe it will also help you understand why it is complained about and by whom.
It's not so much the move, it's the Attack of the Clones copying the same cookie cutter moves. Your defense of France and Russia were at least somewhat original. You see how I went Special Forces SS landing in Finland. Try something new dude, invent.
With the paratroops having their balls cut by the Mob here, guess it's time I start complaining about every unrealistic move. Just wanted a game, then you pull the "Oh, it wasn't written out not to DOW on Japan". You're in the ELO threads. Diplo is such a sham.
I had to Patton slap you. Left my leadership with no selection. Will you use my connections, try for your pardon.