By default, humans (and everyone else) see from the rotation of their object, rather than their heads. T2 only.

To fix this, use AI->AI Core->Vision Joint = Head.

The height at which they see from is specified by the Z Offset in AI->AI Core->Vision Description; this property only affects the rotation from which he sees.

Property Name: AI_VisJoint

DromEd Properties AI Core Vis Joint