When fired, the Incinerator bombards an entire area with microwaves, building in intensity until nothing survives. It cannot be re-aimed mid-cycle.
The Incinerator burns the target area, causing area-of-effect damage. Similar to the GDI Focus beam, the area damage increases as the Incinerator continues to target one location. Therefore, it is useful for crowd control.
The Incinerator can only target ground units, so it should be complemented with anti-air defenses and/or units. It also cannot re-aim while firing, meaning it is very slow when switching targets.
The "Hot Seat" achievement can be earned for destroying 25 units or structures with Incinerators.