Not in combat. All that crossed LD had ERA applied. Most that deployed there did not have ERA yet. I believe some came from stateside w/the ERA already, or at least dummy ERA tiles but with all the mounting hardware already. The rest had the ERA mounting hardware and live ERA tiles applied in Saudi before combat kicked off.
I am actually building the Takom USMC M60A1 RISE / Passive w/ERA and M9 Dozer Blade kit now.