Inferno-IV Missiles are a variation of Arrow IV missiles first introduced by the Capellan Confederation in 3055. The technology was based on recovered Clan FASCAM missiles and was designed to deploy the newly-invented Inferno Mines. Unfortunately, the mines proved to be unstable and would instead ignite upon impact, causing widespread fires.
Units hit by Inferno-IV missiles suffer the same effect as being hit by a number of normal Inferno missiles, while the area affected continues to burn for the remainder of the scenario. Units moving through an area hit by Inferno-IV missiles suffer normal fire damage.
- Tactical Operations, p. 35, "Inferno-IV Missiles"