Positionals in the Open World

[CatStarPrime]

You should be able to get all positionals without a tank. Just stand as close as you can to the enemy's center, W through and instantly hit the back-attack as you're passing, or at a diagonal (WA/WD) and instantly hit the flank attack. I can say from experience that this works even at 300 ms latency, quite reliably.

This. You can hit your positionals as DRG, MNK, as long as you have good positioning and time it well.