When standby is triggered, and the token is spent for an attack action, is the unit that spent the standby token required to shoot at the unit that triggered standby? I can’t seem to find anything that requires a unit with standby to attack the unit that triggered it, but I may be missing something.

1 minute ago, Miles C said:

When standby is triggered, and the token is spent for an attack action, is the unit that spent the standby token required to shoot at the unit that triggered standby? I can’t seem to find anything that requires a unit with standby to attack the unit that triggered it, but I may be missing something.

No, when the standby is triggered, the unit that spends the token may perform an attack action or a move action, that's all there is. When performing the attack you may choose any unit that fills the conditions like any other attack.