With the help of this cleo script, you can move into another ped or into the driver of the car and control it.
Control:
First enter the "EARLIEST" cheat to enable this mod.
Then press the following keys:
1 Selecting the nearest passerby (peda)
2 Selecting the nearest car (driver)
3 Move into a passerby (ped)/driver of the selected car
4 Disable selection.
When moving into the body in the selected ped or driver, your Pedtype will be changed to the one you moved into,
for example, if you moved into a ballas, then other ballas will not shoot at you since you are on their side.