"Ice Storm" was a side mission in Infamous 2.
After clearing out a Militia warehouse, Laroche phoned Cole to say that Ice Soldiers have moved into it. He asked Cole to head in with the Rebels and clear out the Vermaak. After fighting some basic Ice Soldiers, an Ice Titan suddenly attacked Cole and the Rebels. After a vicious fight with the loss of some Rebels, Cole and the Rebels managed to defeat all enemies.