On the first day of Christmas, Ubisoft gave to me an operator in Rainbow Six Siege. All I had to do was log-in to the game.
The Rainbow Six Siege official account on Twitter posted a short announcement that everyone will receive a small gift. The post is rather vague, but if you start the game you’ll see that the gift is a free operator.
Year 1 through Year 4 operators can be received, but not from the base game, and that’s a rather large amount of operators to pick from.
In case you already have every operator in the game, Ubisoft still has you covered. You will receive an absolutely disgusting, but exclusive, Christmas skin for Montagne that can only be received from the Chistmas packs.
Just login by January 5 and you’ll get your pack which you can opet at your own leisure.
You should also login to Overwatch for some free loot.