Letters don't spawn on the map.

Product: Battlefield V
Platform:Microsoft XBOX One
Please specify your platform model. Microsoft Xbox One
Which part of the game is the issue happening in? Single Player War Story
Which part of the mode? The Last Tiger
Please select your region Europe
On which server did this happen?
When did this happen? (dd.mm.yy hh:mm)
Summarize your bug Last tiger challenges bug out
How often does the bug occur? Every time (100%)
Steps: How can we find the bug ourselves? Just play it
What happens when the bug occurs? Won't get the skin reward
What should be happening instead? Get the reward

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Last Tiger skin bug. I had letter problem i had done all challenges but letters said all the time 5/6 but i had 6/6 i did the save thing where i deleted save file from my xbox and from cloud so i had to do the intro again etc. And then it showed me that all the war stories need to be played again and there was progress on the chchallenges but when i entered the the game they were reset. I did the last tiger one and all challenges in one go in one sitting, didn't exit the game at all made sure that everytime i did a challenge that it was completed and with every letter collected i waited so every notification passed and then checked that i had collected it. With the the undetected challenges, reloading last checkpoint if seen seems to be okay and the without repairing it is okay to die it automatically reloads checkpoint and with full health. That worked for me and i got the skin if it works out remember to check the shipment section i had it there. Sorry for bad english, hopefully somewhat readable ☹️

The Battlefield team is looking to address an issue around the letters as soon as possible. 

Tiger Tank skin reward does not unlock when collecting all the letters in the single player campaign

• Platforms Affected: All
• Status: We are looking into the cause of this issue. As a work around for now, it might be possible to obtain it by following these instructions. https://help.ea.com/en-us/help/battlefield/battlefield-v/battlefield-v-bugs-known-issues/

Source

We have another discussion on this here: https://answers.ea.com/t5/Bug-Reports/My-last-tiger-Letter-got-BUG/m-p/7232454/highlight/true#M3811