I've been noticing recently (last couple months or so) that when I place antitank mines down and then redeploy, often at least 2 of the 3 will despawn. There are no enemies around, nobody attacking the mines, they just vanish. Sadly, it's not entirely consistent, so I don't know the exact mechanics behind it, but it's happening enough to be aggravating. Also, probably related, sometimes it seems like they "lose their owner." Like, I will place them down, redeploy, and when I go out they are no longer appearing on my HUD, but are still present. Edit: Title should be "redeploys," not respawns. Dying and respawning seems to be fine...I think, but can't be certain.