so i was thinking about what the active module for engineers could be, and i had this idea, read and then comment!
-Healing pulse
active module
fits: engineers
on first activation, begins to drain energy, on second activation or running out of energy, you will heal the hulls and shields of all allies in an area (range and healing scale with time charged, from a weak short range bump, to a massive field of instant health recovery, cooldown also increases as the module is charged )