Bug in final villain side Who Will Die arc

If you leave the mission after the obelisk explodes but before the cutscene plays, the mission objective never changes to the "you have one minute to get out before the Phalanx shows up" objective, and so the mission becomes impossible to complete.

In order to do this, you need to start the bit where the obelisk explodes and immediately head for the exit. You can just make it to the exit truck and click on it as the cutscene starts, thus breaking the scripting.

Funny, I actually did this over the weekend, but I think the main difference is that I re-entered the mission before the cutscene finished, so it completed without a problem.