Counter barrage requires vet 1
If someone in your allies team doesn´t pick recon plus arty and axis has lefh then your team made a bad commander decision
Also you can be sure axis has lefh like brits go emplacements
There's no need for counter barrage because if the axis team doesn't pick recon plus off map and the enemy has arty then they made a bad commander decision.
For perspective the ml-20 vet 1 is 1 extra shell
The lefh vet 1 is to, without a lick of micro, counter every single indirect option the enemy has.