Play as NOD and drop multiple mines in Tiberium fields. Throw in a Cataclyst Missile and you will not only blow up the minefield, but also all the mines in it. The results were devastating, and can annihilate all the enemy ground forces. This is very useful to make short work of the enemy's super unit. Also you can use the Cataclyst Missile on a refinery to destroy it with one hit. This works only on Tiberium manufacturing structures.