Well, Crew chief is a little hard to explain with details, so I'm going exactly to do that, First here are the numbers that this perk deck gives:
<3- *0.92 less received damage for the entire team and you get 0.84 when your health is under of 50% (the last thing of that 0.84 don't change nothing, you can support the same damage, I guess is better to Hostage taker works faster)
<3- +50% stamina for the entire team (this is not a great thing but is okay, is useful when you need to do things faster like the start of the heist "HOTLINE MIAMI" or for open maps)
<3 *0.92 less received damage when you, only you are the objetive of one or more that are at least 18 meters (not notable sometimes but is okay)
<3- *1.25 range for intimidating enemies or civilians (is okay, lmao)
<3- another *0.92 less damage but only when you have a hostage by your side
<3- +20% health for you and +10% health for rest of the team
<3- +10% armor for you and +5% armor for rest of the team
<3- +6% health and +12% stamina for all the team for each hostage that you have, that means one hostage gives +6%, another one, other 6% and continues and only stacks to a top of 4 hostages

and that's all the things that this perk deck give to us!, but I'm going to detail every single number right down here:

The most important number or breakpoint is the damage that enemies do
all we know that heavy zeal's damage are: 225
and light zeal's damage are: 68

Well, with crew chief that damage is
-HEAVY ZEAL DAMAGE: 190
-LIGHT ZEAL DAMAGE: 57
When we have one hostage in our side that tamage is reduced
-HEAVY ZEAL DAMAGE: 175
-LIGHT ZEAL DAMAGE: 53

we know that the default health that we have is: 230
with that default buff of crew chief (20%): 230 + 20% = 276
With 1 hostage: 290
With 2 hostages: 304
With 3 hostages: 317
With 4 hostages: 331
And finally with a Joker: 400
(remember that a Joker counts as a hostage so is better to have two Jokers ;3)

well, in this case we will take 3 armors, the Two piece suit, Light Ballistic Vest, and ICTV
Two Piece Suit: 20 + 10% = 22 (duh)
LBV: 50 + 10% = 55 (when we have hostages, we can support a bullet from light zeal)
ICTV: 221 + 10% = 238 (probably the best armor for this perk deck but the LBV is good enought, to take advatange of the stamina and have liberty to take critical hits for our weapons)

We can take 3 hits from heavy zeals, and 2 if you want to live, and if you have ICTV you can always tank two shots to armor, of course being patient to your armor recover itself, in total having 4 heavy shots, 5 if you wanna die

This section is shorter, is more to guide new people with this perk deck, is really simple if you want to see like that

FIRST
First things first, the Jokers are counted as Hostages, the better way to have civialins in our side to tie them (hehe) and hide their heads on a wall, is really simple, when the cops don't see his head of a civilian, they don't free them, why? Idk, they have the hitbox in the head so if you hide it they don't really notice about it.
FUN FACT: Some civialins are ignored by the cops, some short examples are: the first world bank's manager and Ralph (the keycard guy in the diamond heist of payday)

You only need 3 hostages maybe, do that work of hide heads of civialins in walls is really simple, but maybe a little hard if the police arrives so fast, if you are in multiplayer you can forgot about tie and hide civialians!, is so easy to everyone in team have one joker and that's all, but to be sure, take only a civialian and tha'ts all... :3

In this section I'm going to do information how crewchief's buffs help the perk decks, in some perkdecks that not boost the health or the armor won't be counted in this section, like that only gives dodge or nothing (yakuza, ejem), and all the team have that x2 *0.92 damage reduction, that +10 health, that 5% armor and that +6% for each hostage, let's start (I used Void UI, btw xd)

230HP + CrewChief = 253HP
253HP + 1 Hostage = 267HP
267HP + 1 Hostage = 281HP
281HP + 1 Hostage = 294HP
294HP + 1 Hostage = 308HP
208HP + Joker = 377HP
(very good option with perk decks who doesn't buff health, crew chief helps a lot magik this decks support 2 shots, 3 if you want to die)

230HP (Default One) + 100%HP (Muscle) = 460HP
460HP + CrewChief = 483HP
483HP + 1 Hostage = 497HP
497HP + 1 Hostage = 511HP
511HP + 1 Hostage = 524HP
524HP + 1 Hostage = 538HP
538HP + Joker = 607HP
FUN FACT: muscle regenerates 45 HP every 5 seconds)
(tanking 3 shots of a heavy zeal and one of a green dozer)

We are going to explain only the armor, because the health is default, 230
280.5 + CrewChief = 289.5
it doesn't change nothing, support the same two bullets from a heavy zeal)

Default, only gives dodge xd

the same but worst

This is an interesting one, we are going to see the 3 armors, Lightweight Ballistic Vest, Ballistic Vest and Heavy Ballistic Vest

LBV: + Die hard ACE and Iron man BASIC = 136.5 + 5% = 140 (not supporting two shots of a heavy zeal)
BV: + Die hard ACE and Iron man BASIC = 156 + 5% = 160 (not supporting too two shots)
HBV: + Die hard ACE and Iron Man BASIC = 175.5 + 5% = 180 (not supporting two shots of heavy zeal... but if you like to play with bots, put one of them that boost of +30 armor and you're going to support 1 shot of heavy zeal, 2 if you want to break the armor)

in total, crew chief doesn't help

Rogue but worse and not for team playing

that 5% of more armor doesn't change anything in the other armors (I guess)

the same but better than infiltrator

Boost a little the health, we will see if crew chief do something
322HP + CC = 342HP
342HP + 1 Hostage = 359HP
359HP + 1 Hostage = 373HP
373HP + 1 Hostage = 386HP
386HP + 1 Hostage = 400HP
400HP + Joker = 469HP
(Supporting 2 shots of a heavy zeal, 3 if you wanna die)

322HP + CC = 342HP
342HP + 1 Hostage = 359HP
359HP + 1 Hostage = 373HP
373HP + 1 Hostage = 386HP
386HP + 1 Hostage = 400HP
400HP + Joker = 469HP
(Supporting 2 shots of a heavy zeal, 3 if you wanna die... the same HP as Gambler)

really?

322HP + CC = 342HP
342HP + 1 Hostage = 359HP
359HP + 1 Hostage = 373HP
373HP + 1 Hostage = 386HP
386HP + 1 Hostage = 400HP
400HP + Joker = 469HP
(Supporting 2 shots of a heavy zeal, 3 if you wanna die... same as Gambler and Grinder)

...
...

anarchist for itself can tank always 2 shots to break the armor, everytime the armor is full, but crewchief can help for save point skills, Idk... as... frenzy? Iron man?


414HP + CC = 437HP
437HP + 1 Hostage = 451HP
451HP + 1 Hostage = 465HP
465HP + 1 Hostage = 478HP
478HP + 1 Hostage = 492HP
492HP + Joker = 561
(supporting 2 shots of a heavy zeal, and one of green dozer)

This is going to be so long...
Two-Piece suit = 250HP + CC = 274HP
274HP + 1 Hostage = 283HP
283HP + 1 Hostage = 302HP
302HP + 1 Hostage = 315HP
315HP + 1 Hostage = 329HP
329HP + Joker = 398HP

LBV + Iron man BASIC + Die hard ACE = 321HP
321HP + CC = 348HP
348HP + 1 Hostage= 361HP
361HP + 1 Hostage = 375HP
375HP + 1 Hostage = 389HP
389HP + 1 Hostage = 404HP
404HP + Joker= 472HP

BV + Iron man BASIC + Die hard ACE = 334HP
334HP + CC = 361HP
361HP + 1 Hostage = 375HP
375HP + 1 Hostage = 389HP
389HP + 1 Hostage = 402HP
402HP + 1 Hostage = 416HP
416HP + Joker = 485HP

HBV + Iron man BASIC + Die had ACE = 347HP
347HP + CC= 374HP
374HP + 1 Hostage = 388HP
388HP + 1 Hostage = 402HP
402HP + 1 Hostage = 416HP
416HP + 1 Hostage = 430HP
430HP + Joker = 499HP

FLAK JACKET: have the same numbers of HBV with Die hard ACE & Iron Man Basic xd

CTV + Iron man BASIC = 373HP
373HP + CC = 402HP
402HP + 1 Hostage = 415HP
415HP + 1 Hostage = 429HP
429HP + 1 Hostage = 442HP
442HP + 1 Hostage = 456HP
456HP + Joker = 526HP

ICTV = 451HP
451HP + CC= 483HP
483HP + 1 Hostage = 496HP
496HP + 1 Hostage = 510HP
510HP + 1 Hostage = 524HP
524HP + 1 Hostage = 538HP
538HP + Joker = 607HP

The same HP of gambler, grinder and ex-president :3

probably the best perk deck to run in the map XD
273HP + CC = 299HP
299HP + 1 = 313HP
313HP + 2 = 327HP
327HP + 3 = 340HP
340HP + 4 = 354HP
354HP + Joker = 423HP
(Suppoting 2 shots, 3 if you wanna die)

414HP + CC = 437HP
437HP + 1 Hostage = 451HP
451HP + 1 Hostage = 465HP
465HP + 1 Hostage = 478HP
478HP + 1 Hostage = 492HP
492HP + Joker = 561hp
(supporting 2 shots of a heavy zeal, and one of green dozer... the same as Kingpin)

There's so many possibilities with this perk deck qwq, I don't want to...

and... that's all, I take the value of joker as that 30% of more health and armor, and for each hostage that +6%; +6%; +6%; +6%, I think there's wrong numbers but is what I could do XD


LET'S ♥♥♥♥♥♥♥ GO TO THE BUILDS :3

This is more to support you and the entire team, we are going to carry the ICTV armor, because maybe is the best way to tank, with medic bags if your team needs it, and finally I have an excuse to have inspire aced, isn't because is OP, is just we can help a lot our teammates plus painkillers, when they die in a open place, just inspire him and he will support a lot with that 5 seconds of painkillers, the best weapon to carry with ICTV is a heavy one, like the LMG, you can take the lmg you most enjoy but here I'm going with the brenner, have a great damage, and for it companion a grenade launcher, Compact 40... China Puff... Arbiter.... etc

Equipment:


Skills:





here we don't have nine lives because we have medic bags :3

Weapons:
LMG (Brenner-21):
-Barrel: Long Barrel
-Barrel ext: Competitor's Compensator
-Bipod: Lion Bipod
-Boost: Stability
-Gadget: LED Combo
-Grip: Ergo Grip

SPECIAL (Compact 40mm):
-Whatever you want jus't dont change the ammunition

This a helpful build for the entire crew thanks to the saw, is a good tool to open doors faster and maybe have more loot because we have one ammo bag with bulletstorm, as primary weapon we select another LMG, because they are good enought to be alone, in this build I'm going to select the M60, but you can have your favorite one again, ICTV to have more protection and that's all :3

Equipment:


Skills:





Weapons:
LMG (M60):
-Barrel: Short Barrel
-Barrel ext: Competitor's Compensator
-Bipod: Lion Bipod
-Boost: Stability
-Foregrip: Tactical Foregrip
-Gadget: LED Combo

SPECIAL (OVE9000 Saw)
-Boost: Total Ammo
-Lower receiver: Fast Motor
-Magazine: Durable Blade

This is a build for open maps, in this build we have the LBV, it doesn't reach the number to support a light zeal shot but with the hostages this change and allows you to support one bullet from the lights, the Lion's Roar is the best assault rifle in the game and for help it we will have the 5/7 AP for shields

Equipment:


Skills:






Weapons:

Assault rifle (Lion's Roar):
-Barrel: Silenced Barrel
-Boost: Accuracy
-Gadget: Stealth Laser Module
-Secondary Sight: 45 Degree Ironsights
-Sight: Whatever you want but just with -1 concealtment and allows the secondary sight

Pistol (5/7 AP):
-Barrel: TiN Treated Barrel
-Barrel ext: IPCS Compensator
-Boost: Concealment
-Gadget: Micro Laser
-Magazine: Extended Magazine
-Sight: Without sight/SKOLD Reflex Micro Sight

This is too a helpful build for the crew, in this builld the star weapon in this build is the Grimm 12G with the dragon's breath ammunition, is very helpful to clean all the ways for you and your entire team, and the best dual shotguns in the game, we are talking about the Akimbo Goliaths 12G, we are going to use the LBV again, and first aid kits too

Equipment:


Skills:






Weapons:

Akimbo shotgun (Goliaths 12G)
-Ammunition: 000 Buckshot
-Barrel: Short Barrel
-Barrel ext: The Silent Killer Supressor
-Boost: Stability
-Gadget: Micro Laser

Shotgun (Grimm 12G9
-Ammunition: Dragon's Breath Round
-Boost: Concealment
-Custom: Auto fire
-Foregrip: Little Brother Foregrip
-Gadget: Compact Laser Module

And for the last build a sniper one, we are going to with the R93, a sniper with high damage and the krinkov for kill dozers easily, we are going to have jack of all trades if you want ammo as secondary, a medic bag for your team and at least an ecm, idk, but never get the faks on secondary, really

Equipment:


Skills:






Weapons:
Sniper (R93):
-Barrel: Compensated Supressor
-Boost: Stability
-Gadget: LED Combo
-Secondady Sight: Whatever
-Sight: Whatever
-Stock: Wooden Body

SMG (Krinkov):
-Barrel ext: The Bigget the Better Supressor
-Boost: Accuracy
-Extra: Scope Mount
-Foregrip: Moscow Special Rail
-Gadget: LED Combo
-Grip: Verge AK Grip
-Magazine: Speed Pull Magazine
-Sight: Whatever
-Stock: Clasicc Stock

And that's all, this is my first guide in english so if there's wrong words, is the keyboard fault (and mine)