Rebellion's just announced a mini-campaign for Sniper Elite 4.
Deathstorm Part 1: Inception comes out on 21st March on PC, PlayStation 4 and Xbox One. It's the opening chapter and mission in a three-part campaign, playable from start to finish for one or two players. It's set after the events of the main game, with the first chapter taking place in the colder terrain of northern Italy. There, a Nazi naval base was recently the target of a bombing run.
Here's the official blurb:
With imposing scaffolding, a German destroyer and myriad Kriegsmarine soldiers to negotiate, Karl Fairburne must help finish what the bombing run started. But his primary mission concerns the secret Manhattan Project: To retrieve a critical, mysterious package codenamed Deathstorm...
Part two of Inception is due out late April. Part three is out May or June.
Meanwhile, also out on 21st March is the Night Fighter Expansion Pack, which includes three new weapons, night-time camo rifle skins for eight weapons and new male and female character skins.
Multiplayer also gets a brand new Elimination mode for free. Here's the blurb:
This two-team mode for up to 12 players is all about trying to whittle down your opponent's numbers. If you kill an enemy player, they're forced to sit out on the sidelines. But if their team kills one of your teammates, they tag back in one of their sidelined comrades. In Elimination, all is not lost, even when you're 1v6.
And finally, there's a free multiplayer map called Night Woods. As Rebellion as said, all additional multiplayer maps and modes for Sniper Elite 4 are free.