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Quest Yaeger «The survivalist path - Cold blooded»
Remember, soldier: the alarmist kills himself with his own hand. Situations are different, I do not argue, but nothing should be unsettling. Self-control is above all! Imagine if the tremor starts. Well, there … I went over too much or caught a bullet inadvertently.
Quest for getting Kappa

Yaeger
Ivan Egorovich Kharitonov

Quest for getting Kappa
Goals and rewards for quest
Quest objectives
Eliminate 2 PMCs with headshots while suffering from the tremor effect
Rewards
EXP:
+5900 Exp
REP:
Jaeger +0.02 Rep
75000 Roubles
+
Stress Resistance +1 level
How to complete the quest?
Reduce hydration in the raid to 0 with food. A can of DevilDog mayo or two cans of condensed milk will do just fine. Also, take water with you.
Eat the food, wait half a minute, and when the character’s hands begin to shake when aiming, go kill the PMC in the head. After killing enough PMCs, drink water.
Completing this quest on Factory is recommended due to many low-geared PMCs (especially early-wipe) that you generally have more chances against.