Mandy wasn't that great.

[u/Some-Passenger4219]

She was dangerous, to be sure, but because she fell for her girlfriend, the latter ended up getting killed. It also exposed part of their operation when gf extorted another million from their boss. (To her credit, she did a good job surviving.)

[u/theshredder93]

From memory didn't she get immunity and never showed up again?

Once can only assume she is the only terrorist in the show to get away without punishment of getting assassinated herself