Believe it not I only just tried out nightmare mode for the first time this week. My findings: yes, actually quite difficult. Admittedly I went in with Loki, which was pretty stupid but I wasn't expecting one shot kills. How do some of you veteran players go at it? My current plan is to get a duration extended Loki with a Shade and try to sneak my way through a capture mission. Though I'm worried about my ability to take down the target! I might be able to melee him otherwise if he stands still I might be able to get him from a safe spot with my Paris. Anyone else up for a stealth mission?