Firstly a few things you have got wrong.
I did not get anything wrong, the only thing wrong here is your ability to read.
There is counterplay due to how the guns operate, they will target the unit barraging closest. So by using a dummy mortar you can shield any howitzer behind it.
I guess that in your opinion there is also the same counter play to Lefh counter barrage.
Main difference here is that Lefh can be destroyed and base guns can not (well they can but they can be repaired.)
One howitzer 30muni barrage even in range will not reliably kill or decrew a lefh. You need two howitzers for good odds to decrew so 60muni + not bring able to build units. Then the axis can return and repair/recrew.
Never claimed one howitzer will counter LeFH. Read more carefully I was responding to the suggestions to buff the counter barrage ability and pointed at that if counter barrage could hard counter an LeFH it would be OP for 30 munition.
Axis howitzers can already counter barrage at vet1, it's not op
You will have to argue that with people that claim LeFH counter barrage is OP.
Main difference here is that counter barrage requires a LeFH vet 1 that comes after CP 8 while counter barrage is CP 4 (if I remember correctly) and the gun can not be destroyed.
Brit counter battery can already target howitzers on most 1vs1 maps and even small 2vs2 maps. It's not OP
Yet in 4vs4 it can't hit leigs in the middle of some maps like steppes... It needs a range buff
I did not claim that the ability is OP, other simply argued that it needs buffs.
Now can you pls return to the topic which is perimeter over-watch?