Weapon teams must be deployed at the same time and within 3" of the unit of Clanrat Warriors or Stormvermin they have been bought with. After that they are free to move as they like, and they count as a separate unit for the rest of the game including for the purpose of calculating the enemy's Victory points).

As long as they are within 3" of the unit they have been bought with, they can use that unit's rank bonus to modify their own Leadership. Enemies wishing to target a weapon team with missile fire or spells have the same limitations as when targeting single characters on foot, as long as the weapon team is within 3" of a friendly unit of at least five models of similar size or larger.

Weapon teams can never charge into close combat, even if frenzied.