From Valve Developer Community
|as=1 for entities that include the new Alien Swarm keyvalues (HullType and BloodColor).
- Relationship (Relationship)
- <string|targetname or classname> <string|disposition> <int|rank>
- Changes whether this entity likes or dislikes certain other things. Used like the
ai_relationshipentity, with this entity as the subject.
- Values for
- Physics Impact Damage Scale (physdamagescale)
- Multiplier for damage amount when this entity is hit by a physics object. With a value of 0 the entity will take no damage from physics.