Thermite

''For similar explosives, see Satchel Charge and C4. ''

 is an incendiary compound seen in Call of Duty 2 and Call of Duty: Modern Warfare 3. Unlike C4 and Semtex, Thermite itself is not explosive, but instead burns at extreme temperatures, melting material with molten iron.

Call of Duty 2
Thermite is used by the player in the mission "The Battle of Point Du Hoc" to destroy the artillery cannons.

Call of Duty: Modern Warfare 3


In "Black Tuesday" ,Derek "Frost" Westbrook plants some Thermite on the base of an enemy communications relay, lighting it with a wireless clacker (similar to the one used to detonate C4) and in the process destroying it.

It also appears in the Spec Ops mission "Over Reactor" where the player has to disarm it before they can enter the submarine.