Yet another of my little questions, made a few of these now.

Is it possible to draw an overlay over an actor that blocks their vision to a small area, also disabling the ability to look around with Q/E.

I wasn't sure if it was wise to have an overlay that is 3 times the length of the map especially if it's quite large, as it might cause some major lag issues. If there is some alternative it might be better.

The overlay has to cover up everything, the little health bars of enemies, the enemies themselves, any particles.

So, is it possible?

Good news, this is coming in the next build afaik. Not only it will hide units, but also bunkers and secrets underground if I remember right.

That's hardly good news, how long is it until the next build, I doubt anyone knows.

Well I dont know about that part, but hey, its going to be a hard coded, official feature, so modders wont need worry about doing crazy hacky ♥♥♥♥ that might end up too laggy anyway.

If it's not disable-able i'm gonna ragequit CC.

If not toggle-able in options, I'm sure the sight range of a unit is entirely moddable, so just make a "radar" thingy that has a sight range of >9000.