With this new mode, Season 2 comes with some new cosmetics and weapons, which are bought with the points you earn in-game. There are: total:

New Weapons: 4 new Weapons. 13 new boxes. 2 Accessories for head and shoulder. Two arms 5 Decals 5 Emotes

But here is the important news. One of these two heads is a Santa Hat. Yes, you can end up in the Alien hordes with a season-end headpiece. As for bad news, but not a beard. Do not let this stop you from screaming that, Ho Ho!! The horrifying, double-jawed monstrosities fall on your position ready to make your Christmas less than merry. Season 2, available now in all platforms, PC and consoles, and should be updated whenever you go to Aliens: Fireteam Elite!