Landmines should be allowed to be buried and unburied with a kinfe.

In the new 1.18 you can bury a landmine in a ied case in a wooden crate and have it explode through the ground which seems like way to much.

If this is to be a feature you should just be able to set a landmine on the ground then have a prompt to bury it.
Maybe creating a little pile of dirt as a indicator.