Battlefield V is the World War II first person shooter released by DICE and EA in 2018, with German voice lines used for Axis soldiers in multiplayer. Lass dich nicht unterkriegen is a common German encouragement phrase meaning do not let it get you down, and in game it functions as a short morale callout. Players clipped individual callouts like this one for soundboards, where the one second delivery makes it easy to reuse outside matches as a compact encouragement reaction in gaming communities.