I doubt that. The B-2 is designed to foil against the long frequency radars the Soviet Union uses to scan its borders. Its not designed against shorter frequency fire control radars.
"Taking the next step in stealth could be the biggest technological risk. The USA has made significant strides in stealth technology since the B-2, particularly in LO maintainability with the Lockheed F-22 and F-35, but these fighters are designed to evade higher-frequency fire control, or "shooter", radars more than lower-frequency, longer-range surveillance radars.
To penetrate and persist in the presence of integrated air defences "the next-generation bomber will have signature reduction well below the F-22 and F-35," says Muellner. He adds: "They are good at shooter frequencies, but not at low frequencies. The B-2 is good at low frequencies, but not at shooter frequencies. The next-generation bomber will be really good at all frequencies."
If that is the case, you still need to know where to point your "shooter".
How close was that Serbian SAM site that shoot down the F-117?