The Engineer has enough toys, the Medic could easily add damage prevention to his resume of damage removal+revival. Allow the Medic to place shields and cover on the battlefield to protect himself and allies.
Dude, no! Medics don't know **** about constructing. It's OUR turf. If medics (of all people) were to handle this I predict an underperforming, leaking, bent and uneven catastrophe. Talk about NERF! Sorry but your average medic couldn't even put up a plaster wall - let alone maintain one. Naah..Let the professionals handle this
[Miniature Crane, Sewing & Epoxy Resin Kit] "Constructs a durable wall of corpses!" "Ignore revival requests, instead add their body to the pile!"