Stupid question... do anti-tank mines persist after death?

Do anti-tank mines persist after you die, or do they disappear right away?

Also in terms of actual gameplay/combat, is there any mechanic that’s vastly different from BFBC2? I skipped over BF3 and I just got this game over the weekend. Thanks!

Yes they do, AT mines and Slams alike. They stay on the map until they are used or destroyed. Well, your first 3 do. Your second 3 will disappear if you acquire and then lose the field upgrade score that allows 6 deployed explosives.

Thanks! Oh also, is there a max distance for the Stinger? Sometimes I’d point it at jets/choppers and it wouldn’t allow me to lock on.

Yes. I believe it’s somewhere in the area of 500m. There is a range max to all lock-on weapons.

Stinger is 350m.
IGLA is 450m.

Do they on hardcore mode?

Do they stay? Yes. Hardcore and normal both.

I thought they stayed only if you don’t change classes after being killed.