Honestly, there's only one game that has an area I hate more than that.
Don't speak of it.
Speak it, fear of the name only increases fear of the thing itself.
...ever play Advance Wars? One level on hard mode exists that makes me want to shoot myself.
Can't say I have, never been a big fan of tactics RPGs. RTS is fine, but I feel I may as well play a JRPG when playing tactics stuff.
At least you haven't faced the horror. But... this guy explains it fine, though I actually beat the level (after like twenty tries). https://www.youtube.com/watch?v=89FYEUlCgbI&list=PLmVdMZ2khLqA1ffreHTonEDpmiIqVdguS
If you can't see them, then they can't see you... Does that mean blind people are invisible?