This is the Prostitute Boss. Defeat her and get your reward.
This boss will start firing exactly from the moment you attack him.
Once the script is in the CLEO folder, a prostitute boss will spawn on Grove Street with 500,000 health points. If you kill this boss, you will receive the following rewards:
1. Max Health 2. Max respect 3. Max stamina 4. $25.000.000 5. Her M4
Do you want to lead a gang of prostitutes? Always wanted to, of course!) So go for it. Ha.