Type 14 Magnetic/Anti-Tank Mine

The Type 14 Magnetic/Anti-Tank Mine is a UNSC explosive. This is also used as "the bomb" in Assault-type games from Halo 2 and Halo 3.

Background
It is used as both a mine and a satchel-charge type bomb. The arming fuse can be set for five, ten, or fifteen seconds, and has a massive area of effect. The magnetic attachment device ensures that it will adhere to a vehicle which passes over it.

Trivia

 * Additionally, it is used to portray Andy in the machinima series Red vs. Blue.
 * There are messages written on the bomb.
 * It has been remade for use in several custom maps on Halo Custom Edition, including Extinction.
 * It is the object used in the game type: Grifball.

Messages
The messages seem to correspond to what map is used.

For instance, the message 'Thus I Refute Thee' appears on the maps Ivory Tower, Waterworks, Turf, Backwash, Elongation, Relic, Foundry. On Bungie.net's matchmaking stats section of the service record, the description of the bomb is "Thus I refute thee."

'Hold Onto Yer Butt' appears on Ascension, Burial Mounds, Warlock, Gemini.

'Kiss It Goodbye' on Coagulation, Headlong, Sanctuary, Terminal and on Tombstone as well.

Hieroglyph of a Spartan helmet, the two fingered peace symbol then xoxo &hearts; appears on Lockout, Midship, Beaver Creek, Colossus, Zanzibar, Foundation, Containment and on Desolation.