TTK suggestion
I heard a lot of people have a problem with the TTK and they think it´s too high. Probably because most people are used to a low / lower TTK like in COD, BF, PUBG or Fortnite. I personally think the TTK fits the game nearly perfectly because it is the mixture of PUBG and a teambase hero shooter like Overwatch. Also for me as a complete battle royale newbie it´s good because I can not get oneshoted or instant rushed (I think the only chance to oneshot someone is a Kraber headshot), I always have time to think and eventually disengage. Furthermore does the higher TTK fit into the intense gunfights we have in this game. Some encounters take serveral minutes and relocations, heals, disengages and reengages which make them very intense and exciting.
Anyway I have a suggestion that maybe fits both ways. It kind of lowers the TTK but also prevents the intense gunfights in mid to lategame.
You could add a damage reduction system on the armour rather then only giving you more health. So the TKK would start pretty low were you get 100% damage and have 100 health and then the more the game keeps on going and the better armour you find the TTK will get lower, maybe 80% on purpe / gold armour which would match the TTK we have right now. So we have a 20% lower TTK in early game and the same TTK in mid to lategame.
Don´t nail me down on my numbers I have no clue how much damage reduction would make sense but I think it would be a good system to give people the lower TTK they desire and in the same time prevent the intense lategame