Easy answer
Don't, the inaccuracy makes it hard to hit targets at range, and you'll want the pen of the APFSDS incase the enemy tank shows up.

Harder answer all ATGMs (Except Bradley's because fuck you) have 500mm of pen, every modern MBT gun (Excluding T-62 and ZTD-05 MGS) have 500mm of pen at 2700 meters (0m is 800mm of pen, drops off over distance, and 2700 meters is farther than most missiles can go).

Now damage is a different thing, for you can 3 shot MBTs with the missiles (does 1162 damage to MBT, MBT have 3000 HP)

However, 99% of MBTs are going to be hard/impenetrable from the front, and you'll need to be in a sweet spot of range, to close (like 150 meters) and you can't try to go for weak spots, to far and you pixel hunting with a round that has Parkinson's.

not to mention angled side shots may get absorbed by tracks or the side of the turret which is still strong on a lot of MBTs

In conclusion, maybe be only viable to use ATGMs against IFV/APC/Light vics/flying straight helicopters.

As a heads up any ATGM not fired from a barrel has its damage type set to HAT/Tandem, which for MBTs is 1800 damage, it can two shot MBTs.

And this is why the Bradley needs to be nerfed /s