Media Luna Investigation (all stealth)
Sorry for the numerous Spots used, but it's to account for the multiple instances of respawning guards. Even still I missed one that nearly blew my stealth.
The Santa Blanca Prisoner (mostly stealth)
This is about as stealthy as this mission can be done given that for some reason you cannot sync tag the driver of the target vehicle. Might be possible if you can get the EMP to stop it, but that doesn't work for me.
El Commandante (all stealth)
I found if you kill the target before you get close enough to the camp to trigger the battle between SB and Unidad, it never happens, and the Rebels don't interfere.
Optimizing your 1080p YouTube uploads
Now to the better quality 1080p uploads trick. I had tried in vain using all different bitrates, compression methods (VBR vs CBR) and game settings. I also tried 1440p DSR, and the 2048x1152 resize trick that used to work to force YT to use higher bitrate. None of it worked. They all looked really grainy on YT. The reason is YT uses a disproportionately lower bitrate for 1080p than it does for 1440p. Literally 3 to 4 times less, even though 1440 is only about 78% more pixels.
It used to be if you resized just a tiny 7%, by making your compression output 2048x1152, it would trick YT into using the next highest bitrate, but they now force you to upload a 1440p vid to get that bitrate. So I knew it would be a gamble to try resizing a 1080p vid THAT much, but I decided, I may as well try, since nothing else worked and it was my last shot. I used x264 at 30Mbps (recommended bitrate by YT for 1440p), VBR (recommended by Vimeo, which is known to be higher quality than YT) on the 50Mbps ShadowPlay clip, resizing to 2560x1440 via Lanczos3, with Avidemux as the editor. For Output Format I chose MP4 Muxer.
The result is no more grainy, pixelated videos, and even the 1080p setting looks better. Even when NV is turned on there's a noticeable difference, but the biggest change is when you are running through or flying over vegetation, the screen doesn't have a lot of blur and pixelating. The only caveat of course is it takes a bit higher ISP speed to view them in 1440p, but even still, as mentioned, the 1080p setting looks noticeably better.