Battle recorder

The Frostbite engine was designed to remove elements from the world, but never add them back in. Seems like a lot of work to allow for it, but it would definitely be worth it, imo. It could lead to the development of a battle recorder, as well as allowing cover to be constructed by players, or allowing destroyed cover to be repaired.

This is the only source I was able to find:

BF:HL Thoughts on Mechanic