Fall Back: When you use the Fall Back Action as part of a Multi-Action, you cannot use any of the following actions in that Turn;
Make an Attack (Core Rules, pg. 182).
Make an Interaction Attack (Core Rules, pg. 190).
Make any Skill Tests which require time or attention, such as Medicae or Tech Tests.
Move Stealthily (Core Rules, pg. 182).
Fall Back: Core Rules, pg. 188
Multi-Actions: Core Rules, pg. 178
Called Shots & Avoiding Allies: Called Shots cannot be made if using a Salvo option in the same attack. In addition, weapons with the following Traits cannot typically be used to make Called Shots, or avoid hitting allies when Aiming;
Assault (when making an attack as part of a Sprint)
Blast (X)
Flamer
Heavy (X), unless the target is Huge or larger, or is a vehicle or structure (weapons with a Heavy Rating of 4 or lower can make Called Shots if the attacker expends their Simple Action to do so)
Rapid Fire (X), if the bonus ED from this Trait are discarded
Spread, unless the attacker expends their Simple Action to do so, and ignores the normal properties of the Spread Trait