Complete "By The Book" Mission in Grand Theft Auto V

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Alright, let's get this mission done! You'll start this one as Trevor right after finishing up the Threes Company mission. So, switch over to him and let's get going.

Walkthrough

1
First up, you need to drive Dave to a house. Just hop in a car and head over there.
2
Once you arrive, things get a bit… intense. Turns out, Mr. K gave Dave the wrong address. Your job now is to torture Mr. K until you get the correct information. Use whatever equipment you need to get the truth out of him.
3
After you've squeezed the info out of him, you'll need to drive to the next location: Chumash.
4
Back to the interrogation room! You've reached the right spot, but you still need a description of the target. So, yeah, more torture is required.
5
Once you've got a bit more detail, take a moment to look around and see if you can spot your target. Dave will probably call again, urging you to keep pushing Mr. K for more.
6
Finally, after you've gathered all the necessary intel, it's time to take the shot. Once that's done, drive Mr. K to the airport to wrap up the mission.

Tips for Gold Medal

Dont Stop Me Now: This one's all about keeping Mr. K alive. You need to constantly monitor the heart monitor and back off the torture if it looks like he's getting too close to flatlining. Give him a moment to recover before continuing.
Electrocutioner: Pretty straightforward – you just need to use every single torture method available during the mission.
The Tooth Hurts: This is probably the most brutal one. The game really makes you feel involved here, but hey, it's a unique experience in gaming, right?
Wrenched: Yep, you guessed it. You need to hit Mr. K with the wrench at some point.
Its Legal!: The last method on the list. This one involves waterboarding. Have fun!

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