I did a quick skim of other posts and did not find this issue mentioned, but when playing a map in the editor (as in play-testing a map actually in the editor via the Play Map feature) the option of disabling the enemy detection constantly resets itself to ON. It's very annoying to constantly have to pause the game at the start of the mission to disable that feature again and again. All the other settings seen to retain whatever value you set them at.
This is on the PC version of the game.
Please address this in a future patch.
Also, ditch the memory budget on PC, because that reeeeeally blows.
Thank you, UBISOFT!