【1】Folder all bolties into 2 for all factions, they’re 
, how dare they thief at everyone’s research point? let the bolties fans unlock them themself
【2】Some guns & tanks are copy& paste, just fold them.
Use the USA tech tree as an example:
brenx3
m3x2
tomx4
barx3
stuartx4
75&76sherman x2
p38x2
Folder each one of them
but grind is so fun and engaging we have to add much more shit to tech trees
you can still grind them if they got folder
Also some german tanks such as panzer 4j/panzer 4h and panther a/panther g should folder
That was sarcasm
You can understand it as the result of mutual discussions between the official and the players
However, since the update, it has been proven that the suggestions for increasing the level of specific weapons requested by specific groups all perform like garbage after implementation.
So the official spent more than half a year very efficiently to get these equipment that should be at a lower level back to where they should be.
where was that discussion? maybe you think about their announcement where they provided tech tree specification in 10 levels and players said it was too much grind, so they left all weapons from 10 level tech tree and compressed it to 5 levels. btw no xp price was announced there.
BOLT ACTIONS ARE LIFE!!! (or rather death? 
)
But yes, do folder them 
Then let me put it another way
Officials believe more classification and forced development are needed
Players from opposing camps are crying to each other that certain weapons are too powerful and are killing them.
Therefore, the official subjective opinions and the tears of watching players formed the first version of the grade classification.
Then spend half a year solving the problem of too high levels of certain equipment
To this day I still don’t understand why it took half a year for the Japanese level 2 tanks to get armor-piercing shells that could counterattack the Sherman.
and all of these have nothing to do with foldering redundant stuff. this is not BR discussion, but discussion about 7 BA rifles not being mandatory research grind.
Officials believe more classification and forced development are needed so new players can get used to the game.
wrong!..Just look at Japan BR5’s monkey teammates this month, it’s already BR5 but teammates still monkeys. It doesn’t seem these 2thing matter. instead of making all players suffer from unlocking bolts, copy& paste stuffs, not add some new mechanism to deal with that?
Other factions also have this copy& paste stuff problem like gun’s early/late types, RM 40, mp40x3, and Japan’s BR1~2paper tanks, Folder them up can stop players number losing