Wasn't that answered in the Iran/Iraq war?
Sort of. A team went to Iraq and did a battle damage assessment of the captured CH with a view to see how quickly they could be brought back in to action. The tanks ended up being transferred to Jordan if I recall correctly. Famously, there is a story of one CH troop, dug-in and broken down holding off a T55 or T62 bn until out flanked - so mostly down to experienced and determined crews.
The report made very interesting reading. Most tanks had fired almost no ammunition but several had fired complete bomb loads. Interestingly the cupola took disproportionate hits, so much for Whittaker's DPV, with the consequence that smashed episcopes sent a fan of glass downwards severing commanders forearms and thighs.
Not a great story for a man that had just come off STILLBREW CHs and was about to go back to CR1.