Capturable Armor/Equipment

I am not sure whether this is possible or not, but if a damaged hulk is left and can be repaired, or the engine/ treads are destroyed, I think the opposing army should be able to capture it.

Technically, it is possible.
But the Mod's policy, AFAIK, - never change the vanila game.
So, I suppose, it will never be implemented within the EF.
Besides, it would definitely ruin the initial balance and would require a hell lot of work to bring it back to some proper condition.