Tutorial: How to make engineers plant AT mines and satchel charges?

[Imp]

Simple answer is you dont its not possible in the timeframe of the game.
Dig a hole then place the mine & cover it carefully so it trigers, conceal iit so its not obvious & thus avoided.
Laying mines takes time a hex is 50m across & a road has to look untampered.
Its another unrealistic feature of WaW, defend an urban or wooded area by seeding everywhere with mines in a few minutes.