Deep Strike During the Declare Battle Formations step, if every model in a unit has this ability, you can set it up in Reserves instead of setting it up on the battlefield. If you do, in the Reinforcements step of one of your Movement phases you can set up this unit anywhere on the battlefield that is more than 9" horizontally away from all enemy models.
If a unit with the Deep Strike ability arrives from Strategic Reserves, the controlling player can choose for that unit to be set up either using the rules for Strategic Reserves or using the Deep Strike ability.
Indirect Fire Weapons with [INDIRECT FIRE] in their profile are known as Indirect Fire weapons, and attacks can be made with them even if the target is not visible to the attacking model. These attacks can destroy enemy models in a target unit even though none may have been visible to the attacking unit when you selected that target.
If no models in a target unit are visible to the attacking unit when you select that target, then each time a model in the attacking unit makes an attack against that target using an Indirect Fire weapon, subtract 1 from that attack’s Hit roll, an unmodified Hit roll of 1-3 always fails, and the target has the Benefit of Cover against that attack. Weapons with the [TORRENT] ability cannot be fired using the [INDIRECT FIRE] ability.