In real life, the Breadly M2A3 has seven ATGM rounds, but in the game it has only two. The remaining 5 ATG rounds are in the turret
IRL 9p148 has ~16 9m113s.
IRL M2 Bradley's missiles are actually not in turret, they're in rear of the hull and are loaded by turning turret a certain way, then opening up top hatch, likely "assisted" by passengers/fodders whose lives are less important as they're exposed to the outside.
In game bradley is already stupid op, it needs a nerf.