I've been playing my mercenary as arsenal until around 30, I got bored because everybody knows as well as me that the only thing useful is the tracer missile, so let's be blunt about that. I went into bodyguard so I can be useful as a healer in the warzones, however, the healing abilities we have are far too dry compared to the other healing classes. Most of our healing abilities require standing in place to heal and have long cast times. We have no bubbles so its not like we can maintain people alive while we heal them. Our emergency scan heals barely any health and it's cooldown is killer. The only positive to the mercenaries is Kolto shell which actually comes in handy but it's far too dry having to stop every 2 seconds to heal players while getting stunned and not having other options to keep yourself alive besides emergency scan (IF it's NOT on cooldown). -.-