I have been seeing a lot of marines using land mines as an alternative to shooting aliens in close combat situations. The marine will plant a mine at their feet while a skulk is attacking them. This has become a very effective way of killing aliens close combat during mid and early game. I am concerned that this is an abuse of the weapon, as I see land mines used for this purpose more than I see them used for what I assume is their intended function (to be planted around map for vision and defensive purposes).
To discourage the use of landmines as an offensive weapon, I suggest that land mines do friendly fire to the user if it explodes within a close range. Landmines will not detonate if the user stands on them, but if an alien unit detonates the land mine and the user is within range of the explosion, he/she will take damage.