Kidnapping
Kidnapping allows for classes that are capable of doing this to potentially make some cash at the end of the day, you can ask for ransoms from your victim or other people in order to free your victim. If you are interested in the dos and the don'ts of kidnapping you can read our server rules HERE.
The ziptie swep is a hostage takers dream, you can use it on your victim and they will not be able to move very fast and their hands will be tied.
Note: Its important to make sure that your class is capable of taking hostages.