a) Drop pointers when friendly units are damaged from mines.
b) Drop pointers when mines explode in LoS.
Pinning mines would make mines less effective at killing infantry but better at defending an area.
Combined with point 2 it would give players enough time to react to his infantry dying to mines and would also show when he walks into his own mines.
Dropping markers will defeat the purpouse of mines in S:44 imo. Mines are meant to be a secret. If you can’t figure it out (mine going off makes a rather distinct sound), you deserve to lose more inf. As for losing own inf to minefields… this is a good question and should be facilitated better to be able to see own mines to make avoiding them easier for new (and also experienced) players.