Some AIRCRAFT models have 'Hover' listed in their abilities. When you are instructed to Declare Battle Formations, before doing anything else, you must first declare which models from your army with this ability will be in Hover mode.

If a model is in Hover mode,  then until the end of the battle, its Move characteristic is changed to 20", it loses the AIRCRAFT keyword and it loses all associated rules for being an AlRCRAFT model. Models in Hover mode do not start the battle in Reserves, but you can choose to place them into Strategic Reserves following the normal rules if you wish.

Deadly Demise

Some models have 'Deadly Demise x' listed in their abilities. When such a model is destroyed, roll one D6 before removing it from play (if such a model is a TRANSPORT, roll before any embarked models disembark). On a 6, each unit within 6" of that model suffers a number of mortal wounds denoted by 'x' (if this is a random number, roll separately for each unit within 6").

Synapse

If your Army Faction is TYRANIDS, while a TYRANIDS unit from your army is within 6" of one or more friendly SYNAPSE  models, that TYRANIDS unit is said to be within Synapse Range of that model and of your army. While a Tyranids unit from your army is within Synapse Range of your army:

■ Each time that unit takes a Battle-shock test, take that test on 3D6 instead of 2D6.
■ Each time a model in that unit makes a melee attack, add 1 to the Strength characteristic of that attack.

Profiles:

Unit	M	T	SV	W	LD	OC
Hive Crone	20+"	9	3+	12	8+	0

Abilities
Airborne Predator: Each time this model makes a ranged attack that targets a unit that can FLY, add 1 to the Hit roll.
Damaged: 1-4 Wounds Remaining: While this model has 1-4 wounds remaining, each time this model makes an attack, subtract 1 from the Hit roll.

Modifiers:

append name (Battle-hardened)

and

16+ selections of Experience Points in self (recursive)

30- selections of Experience Points in self (recursive)