Running twice with one of eidos fieldworks unlocked that gives extra resources. I've managed 10, which works out to just a couple of tonics meaning I'll either be farming the mission several dozen times just to unlock the remaining 4 tonics or I'll just run it once a week for the bonus drop right up till the end of the season. Either way it's not desirable and with the previous, you could at least get a handful per run making farming viable.