Landmine

Were you also looking for the Brute Land Mine or the Trip Mine from Halo 3?

A Landmine is a stationary explosive that is set to appear in Halo: Reach. Landmines may be placed in Forge Mode, and they’re an integral and multifaceted part of the overall experience of Race. It functions similarly to the Trip Mine.

Trivia

 * Landmines can be activated by proximity. If you drive close enough to one, it will explode after a short delay. This can be used to stop any player following close behind you.
 * The Landmine is able to kill a fully shielded player, unlike the Trip Mine, which only took out a player's shields.
 * Unlike the Trip Mine, the Landmine is not activate solely by motion. Thus, trying to crouch walk slowly over a Landmine will detonate it.
 * Landmines will typically appear in the Race gametype on most maps.

List of appearances

 * Halo: Reach