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Proper resources being a scarce commodity in the Zone, however, the mechanics of Call of Pripyat lack the proper tools to perform more complex upgrades at the start of the game. In S.T.A.L.K.E.R.: Call of Pripyat, players can visit mechanics at the various Stalker strongholds in the Zone to upgrade their weapons and armored suits, increasing their rates of fire and ammunition capacity or boosting their resistance to certain types of damage. Make Machine Guns out of Lighters: a Guide to S.T.A.L.K.E.R.: Call of Pripyat Calibration Tools
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