Trouble with "They Look Like Ants" achievement?

I repeatedly tried this achievement on the Loki level with no luck. I rarely had trouble with the first two groups of enemies but I routinely missed the same 3-4 tanks near the top left in the third/last group. I tried hitting the top left area first with multiple missiles; same result. After changing to recruit difficulty, trying for over an hour, & changing my settings with no success, I deleted the title update. I played offline, was able to hit the targets I previously could not hit, & got it on the first try. If you're stuck, give it a try...

Thank you for posting this information. Just curious, were you playing the 360 or the Xbox One version?

Sorry- 360 version.