Maxed out one of your Confidants.

Entered a special relationship.

In Campaign, get 15 kills using Blind Fire

In Operation Tonga, throw smoke from the anti-tank ditch to provide cover for the charge

Beat Call of Duty: Vanguard's Campaign on any difficulty

In The Fourth Reich, use Leadership to help takedown a Jäger Mörder

In the battle of El Alamein, get run over by a tank

As Lucas, use 4 types of lethal equipment, getting 3 kills with each

As Polina, kill 15 enemies immediately after emerging from a crawlspace

In Lady Nightingale, kill 5 snipers across the open field without getting hit by them

In Numa Numa Trail, avoid getting hit by the sniper

In The Battle of Midway, help 5 threatened Allies during a dogfight

In Campaign, kill enemies with 15 different weapons throughout the game