[Horst F. JENS]

missing:
Mod to cancel/alter the OLD AGE effect for commanders.

i suggest doing that for each unit, like
#unit (number)
#age 66
#start_of_old_age 80

it would be nice to mod old age effects and their probability per turn:
#old_age_disease 0.05
#old_age_feeblemind 0.1
#old_age_limp 0.3
#old_age_eyeloss 0.15
#old_age_armloss 0.0