I was thinking it could be the sequel to the Back on Your Feet, Soldier medal with the task:
Repair 250 ships without repairing yourself or repairing an ally in a 1 hour period.

Or,

I could be the opposite of the Back on Your Feet, Soldier medal with the task:
Get repaired 50 times by allies (with a 1 hour period between repairs.

Either one would unlock a new passive ability:
Costs for repairing allies are reduced by 50%.

Which one is better? What do you think?

Sorry, but it's a -1 for me.

Can't say I know anyone above rank 50 who even allows repairs on their ship. That medal ability is pretty useless.

I seen sometimes having the repair active for a min to set the buff then turned back off its an extra 10% hull that can't be cmed off like the swarm can so it helps a little depending on thee hull you already have on the ship. That said I don't think we need much more unless it also gave like a 2-3% buff to def and attack after the new medal was done, otherwise its just a medal there to add a couple more points to spread out the leaderboard for a few weeks.