Maverick and Shaman is just straight up a better version of Opportunist, these roles have a various abilities to keep them stay alive (Maverick can kill, Shaman can redirect kill attempts).
So, please add an ability for Opportunist like a shield ability. So Opportunist will have something that keep them alive until the end.
Settings for Shield ability:
Shield amount: 0-10 (default: 0)
Shield gain for each task completed: 0-10 (default: 0.5)
Shield kills attackers: ON/OFF (Default: OFF)