A no-brainer

"Look, Borov told me to put this away so none of the shit-eating stalkers get to it - zombies make for a nice homemade repellent."

- PDA description

 is a stash in S.T.A.L.K.E.R.: Lost Alpha.

Overview
The location of the stash is in the Vehicle Graveyard near a helicopter and guarded by several zombies.