Umlauts or no Umlauts is an achievement/trophy in the expansion A Criminal Past for Deus Ex: Mankind Divided. It is awarded for successfully conversing with Peter Wörthmüller (the Fixer) at the end of the mission, and deciding whether he stays behind or instead accompanies Adam Jensen on his way back to TF29.
Walkthrough[]
To complete this achievement, Wörthmüller needs to survive the confrontation with Hector Guerrero at the Helipad. The easiest way to accomplish this is to select the dialogue option permitting Guerrero to kill Wörthmüller, and then immediately incapacitate Guerrero before he is able to actually kill Wörthmüller.
Trivia[]
An umlaut is a diacritical mark that consists of two dots ( ¨ ) placed over a letter. Wörthmüller's German surname has two umlauts.