Hrm... he mentions being fitted out to work with different equipment.that could mean that they are:from a newer version of the matrixfrom an older version of the matrixfitted out to run other machine equipment (external to the matrix or even experimental systems - new or old)Given that Halborn is seeking a bilogical interface program (as is Carlyne aparently) I'd say that they have been selected for their exceptional abilities and seem to be attempting to put their mind into the body of someone else or even a machine in order to escape their confines.So it would appear that Carlyne (a female name BTW, derived from Carolyne) witnessed the machine attack on Stallingrad, and Halborn (Hal - born = computer born? also there was Halborn of Rivendel in LOTR) was the one researching Neo in the cinematic.