Here are some proposed changes that would help the tech tree be more balanced and beginner friendly
I posted this before in the comments of the WIP tech tree reveal, and thought it would be better to post it again with some revisions and explanations 
(Yellow has been lowered, Red has been raised) I mostly play the allies so it surprised me when I looked back and saw that I only “nerfed” one German item
Most semi-automatic guns have been lowered in tier because I dont think that it is fair to make new player work so hard for such a classic weapon type, I also worry that people wanting to use semi-autos as their standard rifle would be bombarded with select fire AVSs, MKbs, and M2 Carbines. Semi-auto users would have no way to compete around tight corners against these weapons whereas bolt action wielding solders can reliably bayonette enemy S.A users if they get into CQC. A soldier using a Mannlicher should be able to reliably take down someone wielding an M1 Carbine, or vise versa with the Ross Mk3 and the Armaguerra.
The Luftwaffe Drilling and TOZ-B have also been lowered as at their power because they get outcompeted by nearly every other smg. In the same area I have also removed the MP3008 because like a lot of others have commented, it is too outdated for the locations that it would be found in the VG 1-5 also has this problem but (and I know this is completely subjective and useless) it looks more in tune with the weapons of the early war. The PPS-43 and the PPD-40 were also moved into healthier spots.
The SIG, Federov, and drum Thompson were all moved later into the tree because they are very powerful weapons with great utility for choke point suppression, and I can see specifically the SIG sweeping newer American players.
2nd tier mortars have all fallen one level because I do not see them being very effective in any campaigns, even having used them.
The Puma and StuG III F have swapped places, this is because the Puma is very powerful in the hands of a skilled tanker being able to pen Jumbos in the side. Outside of tank to tank combat, the StuG III F is not a very high threat, of course in tank to tank combat it would be very powerful, but if marked is an easy scrap with the M1 Bazooka, PIAT, or PTRS.
The other tanks that have been moved are the T28, and the T-34, I remember before the
The last revision is that I have swapped the starter tanks for the Japanese, I think that the Ta-Se is a much more versatile vehicle, and the Ha-Go could be enticing for new players who see Japan’s main tank as its first unlock.
These are all of my revisions, and I really hope some of these are considered I love this game, have played it since May 2021, and I’m really excited about the direction its moving in and the new content that will be added after release.
also the FP-3 Buffalo was not moved, I just forgot to uncolor it 
