Each of them will want his part of the looted goods. There are three basic categories of companions: driver, hacker and a shooter, but not every robbery requires all of them. The other important factor is a choice of crew. Depending on your choice, you'll have to also take care about proper equipment, to make mission possible - mostly, it's all about stealing a car. You'll be informed what you have to do and make a choice basing on that knowledge, so if you don't like flying, choose a plan without the helicopter.
You should choose the one which better suits your preferences. Preparing to each mission, you can choice between two ways of making the. In the game, you have six big robberies to perform, which are connected with a solid amount of cash. Choice of approach and crew takes place during planning the robbery