Honestly, I thought we were past this fad, but in The Bureau: XCOM Declassified the phrase "you only live once" has never been more true. I guess it's true in real life as well, but that's beside the point.
Point is, 2K Games needed a way to highlight the game's permadeath feature. What better way to do so then with the obnoxious phrase? While we're used to the more serious tone of XCOM Declassified, the today's video actually provides a nice humorous counterbalance to the sad realization that one wrong decision can lead your squadmates to their permanent death… because, you know, you only live once.