Sniper's Honor - Stephen Hunter - Bog

Reilly enlists former marine sniper Bob Lee Swagger to parse out the scarce details of Mili's military service. The more Swagger learns about Mili's last mission, the more he's convinced her disappearance was no accidentbut why would the Russian government go to such lengths to erase the existence of one of their own decorated soldiers? And why, when Swagger joins Kathy Reilly on a research trip, is someone trying to kill them before they can find out?