I have to say it, I'm really really REALLY REALLY impressed by way BW decided to handle this bug
While on Makeb, players no longer need to complete the mission step "Regulators Diverted Troops from Gravity Hook Four Docking Ring to the Cartel Mining Mesa" in order to be granted the "Making the Connection" Achievement.
So there was this step of achievement, it apparently worked for first week or two after release as some people say they've got it. Whole diverting troops even works when you reproduce steps correctly, only issue is that it does not count for achievement.
Easiest solution? Remove troublesome step from achievement requirements