Some units have ‘Scouts x"’ listed in their abilities. If every model in a unit has this ability, then at the start of the first battle round, before the first turn begins, it can make a Normal move of up to x", with the exception that, while making that move, the distance moved by each model in that unit can be greater than that model's Move characteristic, as long as it is not greater than x". 

DEDICATED TRANSPORT models can make use of any Scouts x" ability listed in their abilities, or a Scouts x" ability that a unit that starts the battle embarked within that DEDICATED TRANSPORT  model has (provided only models with this ability are embarked within that Dedicated Transport model), regardless of how that embarked unit gained this ability (e.g. listed in their abilities, conferred by an Enhancement or by an attached Character, etc.). 

A unit that moves using this ability must end that move more than 9" horizontally away from all enemy models. If both players have units that can do this, the player who is taking the first turn moves their units first.

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:

Abilities
Vanguard Predator: Each time a model in this unit makes an attack, re-roll a Hit roll of 1. If the target is within range of one or more objective markers, re-roll a Wound roll 1 as well.
Invulnerable Save (5+): Models in this unit have a 5+ invulnerable save.

Modifiers:

append name (Battle-hardened)

and

16+ selections of Experience Points in self (recursive)

30- selections of Experience Points in self (recursive)