Finally got around to going after this achievement. Not a slam dunk to solo but I managed to get it after about a dozen tries and using the pointers provided above (thanks!). I think I was too panicked the first six times through so I kept moving to the next target too early. Slowing down the targeting and mashing the 1 button helps. Also seems to be required to get at least 3 or probably 4 of them destroyed in the first phase. I got better at the early targets which seemed to push me to the 10 total. Agree with all those who commented on the counter. Would have been nice to include a count so you could track what was working vs. not working as far as targeting. Good luck to all! It is possible to solo!