Hey Ivan, once again fantastic work!
Just played the 64p layer of Berlin and had a ton of fun.
Here are some issues I noticed:
For balance, I would consider replacing the MG-42 with something less powerful. The map is full of open and narrow lanes and playing as defender it is very easy to lock those down even when greatly outnumbered. I had the same issue on Seelow and found the static MGs already placed around the map bad enough, so I chose to hand out MG-34s instead.
The strategic areas need to be looked after to adjust spawn behaviour. Early on, German AI will never spawn near the Tiger tank while as the game progresses into the center stage, Soviet AI will completely ignore its own tanks in the base and instead spawn near the frontline.
Edit: Is the Tiger supposed to be static? Will AI ever spawn into it because so far I have't witnessed it.
As usual, I would suggest to bring the UI experience in line with FH2 vanilla by changing map names, load screens and so on, also remove bright blue ammo stash markings on the minimap.
And finally, cloning the map is always a better option than overwriting an original as it keeps things smooth and compatible
Keep up the great work!