....and ease? Have you tried the new missions? They are only doable once a week? You can earn Fleet coms much faster, much easier, with less time by just doing all the older missions. Takes about an hour to earn 100 fleet coms a day. You can only earn about 140 a week doing the heroic missions. It is still minute, and can be easily caught up in a day or two.
The equipment works for any mission. You can faceroll Operation Impossible Sector now which awards 20 comms a day. You're focusing on shrubs in a forrest.