Its the worst on halescourge mission. The patrol pathing there is absolutely stupid. For instance, on the part where you have to cross the river. The stack of barrels there, they path around that. Why? I have no idea. Youd think they wouldnt care about a secluded area like this, but clearly its most important to check the barrels.
Then the patrol just after the 3rd tome in the tower, going up and down the narrow path in a way that you positively CANT even get past them without triggering them.
And another thing about patrols spawning silently behind you, then getting triggered and charge you without a sound. Happened on Brachsenbrücke just before entering the dungeon and on warcamp around the candle behind the tent.