APC/IFV producing no damage on infantry in Redsex

Last night while playing on RedSec, I managed to get a Bradley (or the Pax equivalent) and engaged an enemy infantry squad that was out in the open downhill. Strangely, neither the main gun using default ammo nor the TOW seemed to do any damage, even though the shots were clearly landing on target. There were no issues on our end with the vehicle’s operation, and everything else appeared to be working normally as far as I can remember, which made the situation especially confusing and frustrating.