How is the game these days? Last played in 2014

Hi everyone, last time i played the game was in 2014. How many things have changed? I didnt play much, about 50 hours on steam, but these where my main problems with the game:

• all names on the map where in russian and i could not understand where i was
• melee combat, especially with zombies, was very clunky. There was a lot of lag between punching and the zombie registering the hit, for example
• character movement was also clunky, it was like it would not stop moving the moment you released the button but instead it needed to finish some animations, so movement had a floaty/non responsive feeling
• it was vey hard to find ammos. If i found ammos, they werent compatible with the weapons i had, nor there was a simple way to understand which type of ammos i needed
• there was no goal and no account wide progression. It was just a matter of surviving the longest. did any of these change for the better?

Also, i heard there is base building now and more than 1 map? What differences should i expect?