In fact, the two card methods are the same. When you confirm that the character is wearing a police uniform, press the M key to select the accessories in the item list, and then the penultimate option will automatically display the motorcycle helmet. Well, that's it. Press w to take a few steps forward, and then press Enter all the time while walking. So the success rate 100%. You don't have to press W, but you may not succeed.
To add, there is no police cap on the police uniform for card robbery in prison, and it is only worn when the police discipline is corrupt, because the people who want to take the police uniform are on the side of the criminals, and the police uniform is a just suit.
In fact, this method can be used not only for police uniforms, but also for special clothes for all robbery tasks, such as the first round of garbage truck cleaners' clothes for prison guards and prisoners who rob prisons.
Another is that the backpack is the backpack in the task. Quanfu's drillers began to cooperate with Pacific dividend hackers and blow them up. Card method is to put on the clothes you want to card, and then put the police uniform on it in a new way, and then go to the clothing store to save the set when you go out on a mission.
By the way, sometimes your character's backpack may become a parachute bag when you first go online. Just switch packages in the menu.