If you want specific places to put mines you can also load up a map vs. an easy CPU and closely watch the paths your own units take.
Fences (walked around), deep snow (avoided), roads (prioritized), even trees (see Minsk) can heavily influence the path units take. Planting mines and tripwire flares where the enemy doesn't expect them can be more effective than planting them where your enemy suspects/expects them even though the maximum damage done (see that M8 mine video) can be smaller (except when catching a vehicle and he doesn't have pios nearby).
