In Wolfenstein 3D, whenever you alert or get spotted by one of the Blue soldiers with machine guns, they say the same phrase (likely in German since they were Nazi soldiers after all).
If you watch the below video, you can hear what they say (the phrase is said right after the player shoots his gun):
To me, it sounds like they are saying something like gustavo, but a German word search for that word doesn't yield anything.
I've played this game for many years and have never known what they said. What is the exact word/phrase they say (preferably in German with an English translation)?