Building a squad for Shatterpoint is now that difficult, though there are some rules that you'll need to know before you get started. So let us go through all of them:
Each primary character comes with squad points, which are spent when choosing characters for your squad. Every secondary and supporting character has point costs. To build your squad, you'll take the squad points of your primary character and subtract the costs of your secondary and supporting characters. If the result of this is negative, then your secondary and supporting characters are too expansive and cannot be chosen. The combined cost does not have to equal your squad points, as long as it is less or equal to the squad points.
Each character has an era on their character card. In the core box, we'll only have Clone Wars, but we know that this will change whenever we get more expansions.
To be able to add a character to your squad, all the other characters in that squad should have the same era. If it does not, then it cannot be added to the squad. However, this does not apply to your whole team. Your first squad can be centered around the Clone Wars era, while the second squad centers around another era.
Each primary and secondary character has two names. One on top of the card and one next to the unit type.
You cannot take character within your team with the same name. If I would take Padawan Ahsoka Tano in my first squad, I won't be able to use Ahsoka Tano, Jedi No More in my whole team. Each character in your team should be unique.