>>64697194
Because the best sensors are trained eyes and brains

you don't get it because you're stupid

They have thermals and CROWS, but they can only look in one direction at once and cant hear shit. The gunner is only looking forward, the commander with the CROWS probably has other shit to focus on, and the loader being on his own .50 means he isn't ready in his role if a threat emerges that needs some other shell.

>>64697194
But a squad has more guns than a tank.