Repairing seems to be lacking subjects.

There are things like tanks that can be repaired, but those aren't available in infantry-only fights. The support class has cover that can be repaired, but I don't think many people use it enough. When it does get used, the damage to it tends to be explosion damage where the thing blows up. I don't think players realize that the things chip away from machine gun fire.

I'm hoping that the future gadgets in the game are more prevalent among players. Perhaps a gadget for the engineer that they can repair themselves? Maybe have the remains of gadgets left behind for an engineer to reassemble if they get destroyed completely? There are a lot of gadgets with low health pools.