Infiltration (XSTA)

 is Track 24 on the Xenosaga THE ANIMATION Original Soundtrack. It plays in the following scenes:
 * Cherenkov goes off on Shion for not yet having real field data for KOS-MOS in Episode 1.
 * KOS-MOS convinces the Elsa crew to let her board in Episode 3.
 * Shion freaks out at the Kukai Foundation's artificial thunder in Episode 6.
 * The party stages their breakout from their holding room in the Durandal in Episode 7.

A version of this track with no percussion plays in the following scenes:
 * The Kukai Foundation is blocked by a Galaxy Federation fleet en route to Second Miltia in Episode 6.
 * The party touches down on an open plain in the Encephalon in Episode 7.