One message stands out among a handful of others. The sender is called Jackal and the message reads: "My man at the research institute will recommend that you lead the expedition. He will have to hire your boys to guard the bunker. That will make things easier for you. Remember, the client doesn't want ANY information about the operation of X-designated objects to reach the scientists. If it does, we will not be able to leave the Zone. Don't let me down, Black."
― Black's PDA's last entry.
This PDA appears only in S.T.A.L.K.E.R.: Call of Pripyat.
Acquiring
This PDA is carried by Black. It can be acquired during a mission for Prof. Hermann where one needs to bring him Administrative documents. After picking them up, Black and his men will attack. Once dealt with, this PDA is found on the leaders corpse. Can be given to Hermann in exchange for 2500 RU.