Ok, good points but the intelligence has to be very good or all the latest kit will still miss something!
I use my daytime walks and knowledge of the land to look for sign and listen to the pheasants. They will tell you if a fox is about. Wrens too will tell you if a predator is in thick cover.
A fresh turd, a pheasants wing or two.
Put a brick or stone on favorite runs, they love to mark them etc.
So when I go for a "wonder" with a lamp I have a good idea where to hang around.
I do fancy a trail camera though!
U.?