>>96520032
I had a lot of fun designing Westfront after reading a ton of first hand accounts of the war.
It's more company scale, but I had creeping barrages as an off table event that happens when you're ordered to make certain types of attack. You have no control over exactly where it's placed, but have to advance behind it anyway if you want to use it for cover... which often meant you'd take casualties from your own artillery, which is realistic (and even preferred by commanders of the time - they expected at least 10% casualties from friendly artillery, otherwise the creeping barrage is too far away!)