Ok, so I'd just like to see some wreckage stick around longer. Maybe make it so engineers can deconstruct wreckage, and measures are taken to prevent TOO much wreckage. For example if a reaver crashes into a field the system says to its self "Is wreckage present within 400 meters?" No? Make wreckage
Is wreckage present within 400 meters? Yes! Is area hot spot? Yes! Is wreckage present within 50 meters? No. Make wreckage!"
This way a courtyard or a battlefield would become filled with wreckage, usable as cover by infantry. Direct fire can destroy the wreckage or engineers can clear it (Considerably faster). Could make it easier to push out of a base into the court yard if you can make some extra cover. Itd also be cool to drive / fly past a battlefield with 10 destroyed tanks in a field that happened like 15 minutes ago. (Wreckage would deconstruct after 20.)
__________________
|