ORIGINAL: Iron Mike Golf
Are you talking about adding this capability so that info is available during the battle? If so, what are you trying to simulate? Battle staffs (at least US) of that era did not track that info on graphic displays. Such info would be in a log of radio traffic and might get reconstructed on a map later, but dead vehicles wouldn't get posted on an overlay. Remnants of units would.
At echelons below Bde, seeing those wrecks, of course, is fact and would be factored in to picking your route for a movement. But the numbers and type of wrecks wouldn't be something that one would pay much attention to. More like lots or a few. The main question being, do they hinder movement there?
If you add this to 2.1, please give us an enable/disable switch for display during the battle. I'd love to see this for post-battle browsing.
Why do I need it: sometimes having a large number of units can be distracted and lose a unit, not realizing that he would be killed somewhere in the hex. Having at least some summary of what you have lost scouts in this hex, you can get a more detailed status of the battlefield.
Or, for example: after playing with friend in multiplayer by PBEM system, you can forgot what hell happend on this hex. It's normal when you play a couple hours to complete scenario, you can remember every kill you have made. But when your game goes on for a week ... I think such a thing would not prevent (at least to me)
I do not insist on the fact that this functionality was enabled by default (can disable it in the menu would have been enough).