The lobby host can opt to quit early by trading the hostage, but the pay will be limited. The longer the holdout, the bigger the pay, but cops will also become more and more aggressive as the session draws out. Each wave is much shorter than a usual heist wave, lasting about 3 minutes each. The main objective of Holdout mode is to defend oneself and one's hostage against 9 progressively harder assault waves in order to gain ransom from the police.