Me and a friend placed two landmines in a city and waited for somebody to step on them. When that finally happened they both exploded when the player was on top of them, but the player (who was hit twice) didn't get damaged at all and just ran straight through. I made a video (https://www.youtube.com/watch?v=tNmABKvvMHg) about it, which I will link to you with the appropiate timestamps. We placed them at the doorstep(stairs) of two buildings, a smaller sized supermarket (as can be seen at ~0:15 in the video) and the red brick house (0:40). We then waited for a player to run over them, which happened twice (at 4:10 and 5:14).