0 0 1Actions Report Solution To unlock the Teamwork trophy in World War Z, you will have to complete one of the missions from any of the episodes. If you don't have friends to play with, search for an online match.Showing only comment. i just wanted to add, that you've to play a mission from the first cutscene to the end cutscene in a 4 human player team. - if you're spawn in a running mission it doesn't pop- if a player leaves during the mission it doesn't popPosted by YingTao666 on 20 Apr 19 at 19:23