I couldn't seem to quit a game at the map screen - you know, if I don't like the map I'll leave with no penalties. But, I was able to hit Menu during the game and the Leave option was there. So, looks like you can still RQ if you go against a Death Squad.
"While you are busy stalking someone, someone ELSE is busy stalking YOU!"
"Have you noticed how many people are named Ron these days? Everywhere I look, I see more Rons!"