Unlock tactical perk 4

Complete all side missions

Collect all Übercommander death cards

Found all concept art

Find all of Max's toys

Visit every District

Max all Perks

Stealth kill 10 enemies in a row

Achieve the second best time in the Killhouse

Destroy a Zerstörer with an Übergewehr

Beat the game on "I am death incarnate!" difficulty or higher

Beat the game on "Do or die!" difficulty or higher