Played through until I had to reprogram damaged borg drone got 4/8 however had to stop because I coould no longer kill any borg. Once they had all life points gone the borg would just freeze a few minutes and could no longer be targeted . After a few minutes they would start up again and they could be targeted until no or little health points then they would freeze again. In addition I noticed that when I moved my team away from the battle some of the borg would target each other and destroy each other. However this did not always work.
Please some feed back would be help in this case.