Buy Warhammer 40,000: Darktide - Imperial Edition and get:

Loyalist Pack: Purge heresy in style with these 4 unique class outfits, 8 weapon skin patterns, one set of headgear as well as an Ogryn body tattoo.
Mortis Veteran Portrait Frame: A cosmetic portrait frame used to pay tribute to the fallen defenders of Tertium Hive.
Caducades Backpack: A cosmetic backpack for human characters. Scavenged from the fallen troops of Cadia, this backpack has been repurposed to serve those still alive and fighting.
2500 Aquilas (premium currency)