Ex 12B here. Surface laid mines are common practice. The idea is to kill the first vehicle that doesn't see them, then they pause and decide whether to breech through, or go around. Everything around that mine field is a pre-sighted artillery kill box. They pause, drop artillery on them. They bring up engineers to breech, drop artillery on them. They move west toward cover, drop artillery on them. Actually more efficient to put in and remove, and a lot of times just as effective.
We are Artillery, King of battle, follow me!