Well, newly ally-like France has taken care of that problem!
A Mistral-class ship is capable of transporting and deploying 16 helicopters, four landing vessels, up to 70 armored vehicles including 13 battle tanks, and 450 personnel.
The Russian military has said it plans to use Mistral ships in its Northern and Pacific fleets.
See? Russia pretends that it won't deploy them in the Black Sea! And France pretends to believe them! Now that's nuanced foreign policy!
Plans change, eh? Have no doubt, at least one of those Mistrals will be based in the Black Sea, and France won't say a word about it.
UPDATE: Background on the Mistral class and the deal.