# Crew training/retraining. "moar numbers" edition

Current 1/6/20

First off, props and a big thank you to my brother in arms, ShakeNBake, for doing the number engineering on this and making me look like I know what I'm talking about. And another thank you to @8_Hussars (again) for proof reading this and double checking my work in case I go full retard.

So, this post is going to talk about Crew Experience and how to manage it to your benefit. What this post is __ NOT__ going to talk about is skill builds/selection, the equipment you can put on your tanks, and the %'s you see next to their names in the garage.

*******************

**"Major Qualification Training and Retraining************************The Primary Qualification (i.e. Commander, Driver) works separately from the rest of the skills. Changing the tank assignment has no* effect on crew skills. All numbers, except where noted, represent the amount of Crew XP that is lost when retraining for Credits (not the Free) rather than Gold. Retraining for Gold is always 0 XP lost.

One of the few occasionally I'll actually cite the wiki:

http://wiki.wargaming.net/en/Crew#Training_and_Retraining_in_the_Major_Qualification

Quote

Tank Academy- At the cost of 200 Gold, the player's selection of the Tank Academy option will cause the new recruit to immediately obtain a 100% Training Level in his Major Qualification, and thereby automatically unlock and make available the further selection of a first Skill or Perk.

Regimental School- At the cost of 20,000 credits, the player's selection of the Regimental School option will cause the new crew member to immediately obtain a 75% Training Level in his Major Qualification. In such case no Skill or Perk selection will become available until the crew member's Training Level in his Major Qualification reaches 100% through experience earned in battle.

Rapid Courses- For free, the player's selection of the Rapid Courses option will cause the new recruit to obtain the default of a 50% Training Level in his Major Qualification. In such case no Skill or Perk selection will become available until the crew member's Training Level in his Major Qualification reaches 100% through experience earned in battle.

Or:

-The Initial Grind, 75% -> 100% Primary = 72543 (73K) Crew XP

-Cross Class Retrain, 80% -> 100% = 63856 (64K) Crew XP

-Same Class Retrain, 90% -> 100% = 39152 (39K) Crew XP

Note: Same Class Retraining for free rather than for Credits (80% rather than 90%) loses you an extra 25K Crew XP. 20K credits or 25k XP.

Retraining for Silver is entirely doable (especially within classes). The losses are extremely small AND(!!!) you can cheat the system a few ways as well.

- Unlock the new tank, and retrain the crew to that new tank but keep them in the old tank to grind the stock off the crew. (not the best way but it works)
- Girl crew! / Keep the crew in that tank
- The Kustom Krew method: Requires a premium tank of that nation and a decent crew from somewhere else. Put the good crew into the Premium, then send (to start with) the Cdr to the barracks and put a new 75% cdr in the premium. With ACT running, the Cdr gets double exp for a long as you keep him in there so you can knock out 1 or 2 skills fairly quickly. Once at the desired level, remove the premium Cdr, put the old one back in and work down the major qual list (gunner then driver then RO then loader) as needed for the new tank. Put original crew back together, and you have a 1 or 2 skill crew trained on the premium ready to be retrained to your new tank of whatever class. Profit
- Put the crew into a premium tank of that nation, (same class is best but any will do. just takes longer) retrain the crew to the new tank for silver, and then grind the crew to 100% while in the Premium tank.

EX:

If you have a US TD crew (say a 25/2) but don't own a US premium TD (and I don't blame you. I hate the scorp.) but you have a US premium Heavy, say a T34, you can retrain the crew to the new US TD (28 proto) and then grind the primary exp in the T34. You lose out on some of the accelerated benefits for being in the same class/type but not all of it and your crew exp continues to build at half rate in the premium, plus you get to pull in a few creds as well!

http://wiki.wargaming.net/en/Crew#Bonuses_and_Penalties and scroll down a bit:

Quote

- If a crew member is in a vehicle of a different Type as that in which he has his Vehicle Competence, and the vehicle is a premium vehicle, he would also take a 25% Penalty to his current Training Level.

...........- In a vehicle of a different Type as that in which he has his Vehicle Competence, the crew member would earn 50% less experience per battle if the new vehicle is a premium vehicle.

The thing to remember is that you have to have the new tank **unlocked** to retrain the crew to it, but you **do not need to buy it** (unless you really want to)

*****************************Skill/Perk Training and Retraining********************************

Skills count from a different pool of XP than Primary Qualifications. This pool can get huge at 3x+ crew levels. On your third skill, getting from 87% to 88% takes almost 22k XP*. Resetting skills for Credits loses a flat 10% off of the **total XP **(not just that skill, in total) in the crew exp pool. At (3)87%, the total skill exp pool is 1088K XP. A skill reset for credits of your 3 skill crew loses 109K XP. (218 games worth of exp @ 500exp/battle)

Reference points for silver retrain:

-21K crew XP lost from 100% on first skill (**42 battles. meh.** )

-23K crew XP lost from 36% on second skill (first skill remains at 100%)

-39K crew XP lost from 82% on second skill (equivalent to same class retrain)

-63K crew XP lost from 100% on second skill (**126 games worth of exp. poof.**)

-64K crew XP lost from 17% on third skill (equivalent to cross class retrain) (**128 battles worth btw.**)

-70K crew XP lost from 49% on third skill (second skill remains at 100%) (**or 140 battles **)

-73K crew XP lost from 55% on third skill (equivalent to initial primary grind from 75%)

-147K crew XP lost from 100% on third skill (**294 games worth!**)

-164K crew XP lost from 52% on fourth skill (third skill remains at 100%)

-315K crew XP lost from 100% on fourth skill (** 630 games that never happened!! Y U DO DIS!?!?**)

Remember, you lose a crapton of exp per silver retrain. How much is 21k exp? about 42 battles worth. (averaging 500 exp/battle) or an average of 5 hours of playing that tank only. (7 mins a game averaged)

If you notice, that's the **LOW** number for silver skill retrains. 42 battles is barely tolerable to get back to where you were. After that, the losses are simply staggering. Into the hundreds or maybe thousand(s) of battles.

How much XP is worth 200 gold is a question everyone will have to answer on their own. Personally, I do the first skill resets (I actually train 2 skills, then reset to what's needed. Except the commander for 6th asap.) and same class retrains for credits. Everything else is gold.******************************Accelerated Crew Training (ACT)*********************************

Either on a Premium Tank, or a normal tank that you have completely researched (Elited!!!), There is a small check box above the crew members that will allow you to **double the exp that 1 crewman gets.** It automatically goes to the person with the **LOWEST TOTAL EXP**, not the lowest Major Qualification or even crew skill. This lucky person gets double the amount of Crew exp than he normally would INCLUDING (and this is cool) any modifiers like personal reserves. ACT does this by taking the exp that the 'tank' gets (its how you unlock modules and the next tank etc) and giving that exp to 1 crewman.

How much crew exp does he normally get?

The amount of Exp it shows you on either the 'detailed results' breakdown, or the "personal achievements" on the after battle screen(s).

However, Checking the ACT box will prevent you from stockpiling exp on that tank to convert later to free exp with gold (if you like to do that, me not so much.)

Which Brings us to...*******************************Bonus Math and Personal Reserves***********************************

(Now with ACT!)

**Warning! Math ahead!**

If you ever played D&D then this makes total sense to you. If you didn't, then welcome to Weird Math 101.__All the Bonuses are Additive, not Multiplicative__. <--------- Remember this.

So you would think that with your 2x daily multiplier and a 200% (2x) experience personal reserve and a 200% (2x) crew exp personal reserve running that you would get (2x2x2)= 8x Experience from your first win?

Lolnope.**You get 4x.**

Here's why. The bonuses don't stack. Each one individually sees the base Exp (from the personal results or details screen remember?) and does their own action to it. So the daily double does its thing and the personal reserves do their thing. But they never see each other and the base exp only counts once and then they all get added together.

The short version:

TotalCrewmanXP = [earnedXP*(crewXPMod+(firstWinMod-1))]*[1+Accel]

ok, lets expand it a little:

base exp+ daily double + 2x personal reserve + 2x personal crew exp reserve + 10% clan reserve and accelerate crew training

( 1 + (2-1) + (2-1) + (2-1) + (base exp x .1) ) = 4.1 x base crew exp

and if you have ACT on you get 4.1 x 2 = 8.2 for that 1 crewman

Or in long hand for the same example:

base exp + daily double + 2x personal reserve + 2x personal crew exp reserve + 10% clan reserve and accelerate crew training

(Base exp + (2x base exp - base exp) + (2x base exp - base exp) + (2x base exp - base exp) + (base exp x .1) ) = 4.1 x base crew exp X 2 (for ACT)

No? ok, the long way then.

So:

500 (base exp) (it counts here!)

500 (base exp) x2 (daily double) = 500 exp. (because the base exp doesnt count here)

500 (base exp) x2 (exp personal reserve ) = 500 exp. (and it doesnt count here either!)

500 (base exp) x2 (crew exp personal reserve) = 500 exp. which gives you:

500exp (base exp) + 500exp (from the daily double) + 500exp (from exp personal reserve) + 500 (crew exp personal reserve) = 2000exp because the base exp is only included once. or "4x" instead of the 8x you were expecting.

Clear as mud? yeah I thought so.

To make it easier, subtract 1 from the bonus and add it to the other bonuses to get what you are actually seeing.

So if you run everything possible, you could have a 2x daily double, a 200% crew exp multiplier from personal reserves, a 200% exp multiplier from personal reserves + your Clan popped a clan reserve of +10% more exp. Got all that? Lets break it down:

Base exp + base exp + base exp + base exp + (base exp x .1) = 4.1 x base exp. If your base exp is 500 then your crewman gets 2050 exp

^ ^ ^ ^ ^

base exp 2x daily 2x Per. Res. 2x Per. Res. clan reserve

Let's make it a BIT more obvious.

WG is doing a 5x month and is running a 3x crew exp weekend and you pop a 2x personal reserve. you get 8x exp for that 1 fight.

( 1 + (5-1) + (3-1) + (2-1) ) = 8x base crew exp

^ ^ ^ ^

Base Exp + 4x base exp + 2x base exp + base exp = 8x or

500 + (4x 500) + (2x 500) + 500 = 4000 exp per crewman or 8000 exp for 1 guy and 4000 for the rest with ACT running

Neat! Hope that cleared some of the mud out. If it didn't please ask questions below!__ *(Both stars)__ After retraining the Primary Qualification, the XP that would have been between the 87% and 88% skill mark, some amount less than 22k, gets dropped to the primary qualification. Your third skill will remain at 87% and your primary skill will increase.

ex:

You had 18K (90%) of 22K(100%) and retrained in-class. Your primary qualification would now be 94%; 39K XP lost to the silver retrain, 18K gained in Primary Qualification from the skill reset. Please note that you have to retrain the skills to get the exp in a skill to funnel back into the Major Qualification crew exp pool, even if you have a bunch of exp in a skill slot that you haven't chosen yet.

But, But if you are going to do that, then you might as well gold retrain him to major qual and be done with it instead of silver retraining his major qual then silver retraining his skills to get it to backfill and eating a significant exp penalty that's worse than the major qual exp loss.

Or just throw them in a Premium tank?

**--------------------------------------------------------------------------------------For The Math Phobic------------------------------------------------------------------------------------**

To say it avoiding math: Primary Qualification is a small pail with some water. Skills are a huge bucket of water. They aren't connected at all, but if you get a cup and scoop some out of the bucket into the pail, it will fill up. The cup is what kind of retrain you are going and how many holes/leaks it has. (lots of holes for Free, a few holes and cracks for Silver and no leaks at all for Gold)

Graphs for the number shy:

Exp required for each skill level:

or, for the whole thing:**TL;DR:**

Do yourself a favor and retrain for gold after skill 2. Wait for sales if you must. Play in weekend/weekday warrior tournys if you need some quick small gold.

If gold retrain isn't an option at all for you, Please ask anyone (make a thread, google search the wotlabs forums, status update, post here, anything.) about the way to grind the skill order without retraining (it can suck, esp with perks, but it's doable and more exp effective than silver retrain in the long run)

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