When I created this guide, it was in response to a thread full of questions and uncertain answers; I decided to test two things:
- Whether Infamous level reduces required XP or offers a bonus to gained XP.
- Whether Fast Learner experience bonuses stack.

Nowadays, experience bonuses are very clear worded and easy to understand.

[This information is current as of Update 65]

There are two ways to gain bonuses to your experience.
- Infamy ranks
- Perk Decks

These bonuses are additive, which means you add up each %bonus first, then apply that total percentage to your base experience. This can be seen in the data below.

When comparing the experience gains offered to Hoxton Breakout (Pro) on Deathwish difficulty, Crime.net determined the base experience payout for the job would be the following:

Total........Heist.......Difficulty............Possible Experience.........................
Bonus.......Exp...........Exp.......................Modifiers....................................
=========================================================
+ 0% ..... 64,000 + 832,000 ........... infamy 0, no perk deck ... (100% + (0%)) = 100%
+ 5% ..... 67,200 + 873,600 ........... infamy 1, no perk deck ... (100% + (5%)) = 105%
................................................................................................ (64,000 + (0.05 * 64.000)) = 67,200
+10% .... 70,400 + 915,120 ........... infamy 2, no perk deck ... (100% + (5% + 5%)) = 110%
................................................................................................ (64,000 + (0.10 * 64.000)) = 70,400
+50% .... 96,000 + 1,248,000 ........ infamy 1, perk deck ........ (100% + (5% + 45%)) = 150%
................................................................................................ (64,000 + (0.50 * 64.000)) = 96,000
+55% .... 99,200 + 1,289,600 ........ infamy 2, perk deck ........ (100% + (5% + 5% + 45%)) = 155%
................................................................................................ (64,000 + (0.55 * 64.000)) = 99,200

*I used only the "Heist exp" in this example, but you can substitute this for the Difficulty Exp or the total of both, and you'll receive the same results.




- *All* current experience bonuses are additive.

- With maxed Infamy level and all Infamy points spent, and with a perk deck bonus, the highest experience modifier you can currently reach is 3.5x (or +250% bonus).

This information was actually based on build 23. I merely believe that changes to experience were implemented with Infamy 2.0.

There used to be a skill on the second tier in the Mastermind tree called [Fast Learner] whose basic bonus gave +15% experience, and whose aced gave an additional +30% experience. There was a great deal of controversy in the forums regarding whether acing the skill added 30%, or simply added another 15% to raise the bonus to 30%, and whether any of this stacked with Infamy experience bonuses. After much debating and bad math using percentages in the forums, I decided to get to the bottom of the issue.

Playing Four Store on normal mode, and using some backup save files to use both Non-Infamous and Infamous-1 characters, I tested the experience reward given (without an escape) on offline mode (solo, no crew alive bonus) with [1.] no points in Fast Learner (base heist exp), [2.] basic FL, and [3.] aced FL. I tested it this way because at that point in time, Crime.net did not tell you the experience you were to receive for any given successful heist.


My Results:

No levels in infamy
1. Base: 950 xp
- Self-explanatory. The heist is worth a total of 950xp, which is the sum of "Day Experience" and "Job Experience." Both of these categories of experience are affected by all bonuses.
2. Basic: 1093 xp
- This is equivalent to (base +15%)
3. Aced: 1420 xp
- This is equivalent to (base +49.47%), or ((base + 15%) + 30%).
It is apparent that the experience boosts here are compounded.

Infamy level ONE
1. Base: 997 xp
- This is equivalent to (base + 5% Infamy)
2. Basic: 1148 xp
- This is equivalent to (base +20.75%) or ((base +15%) + 5% Infamy)
3. Aced: 1491 xp
- This is equivalent to (base +56.975%), or (((base + 15%) + 30%) + 5% Infamy)



Additionally, the description on Infamy rewards in the Infamy tree were worded poorly. They claimed that each rank decreased the amount of experience needed to level by 5%, which caused more arguments in the forums. So again I tested it.

Using a level 0 character and an I-0 character, I played a single heist to see what the required amount of exp was to reach level 1.

For both Infamy-0 and Infamy-1, it took 900xp to reach character Level 1.

This means that despite the description on Infamy, the feature does not reduce the amount of experience required to level. It actually provides a bonus to earned XP.




- Infamy 1-5 used to claim that it reduced the required experience to reach level 100. This was simply a miscommunication, as trial testing proved that it instead offered bonus XP to reach the normal experience requirement faster.

- All experience boosts (Fast Learner basic, Fast Learner ace, and Infamy boosts) used to stack multiplicatively. This means that the bonuses they provided compounded upon one another, rather than being additive, and at Infamy-5 you could max out your experience bonus at 190.8% (almost doubling all experience gains)