How about a tech tree to assist with the treatment and recovery of injured units?
Technology (Research): Triage
Lvl1: First Aid: Reduces recovery time by 2 ticks.
Lv2: Medic: Grants an additional -2 ticks to recovery time.
Lvl3: Field Surgeon: Grants an additional -4 ticks to recovery time.
Use the cost and eta's for the old insurance techs.
When fully teched this would give a total of -8 to unit recovery eta's.
Technology (Research): Triage
Lvl1: First Aid: Reduces recovery time by 2 ticks.
Lv2: Medic: Grants an additional -2 ticks to recovery time.
Lvl3: Field Surgeon: Grants an additional -4 ticks to recovery time.
Use the cost and eta's for the old insurance techs.
When fully teched this would give a total of -8 to unit recovery eta's.