I like how it's like a reverse stealth game where you have the line of sight but you still don't want anyone caught in it.
The worst part is probably how when the camera shifts it can be deadly, I would suggest a sort of "lock mode" where it's treated like your cursor is always at a specific point, not a point on the screen but in the level, so that way you can make it a bit easier to make sure you don't get unfair shifts