Sniper Elite 3 only came out a short while ago but Rebellion have already released new DLC for it. The DLC includes new multiplayer skins, weapons, and the single player pre-order bonus, Hunt the Grey Wolf.
The Hunt the Grey Wolf mission allows players to assassinate Adolf Hitler in a rewrite of history. This was originally given as a pre-order incentive but is now available for all.
The other DLC packs consist of The Hunter Weapons Pack, which includes three high power hunting weapons for use in single player and multiplayer, Camoflague Weapons Pack which gives you three silenced weapons, and the Allied Outfits pack which allows you to play multiplayer as either an Allied Urban Sniper, a US Army Rifleman, or an Indian Division Soldier.
The packs are available now.