The Harder They Fall ability tree
While it might be loathsome or insulting to their professional pride, all Alliance Engineers realize they are fighting in a war, and that a great part of war involves destruction.
More information found on page 34 of Fully Operational: A Sourcebook for Engineers.
BASE ABILITY[]
Once per game session as an incidental, the character may spend two Destiny Points and make a Hard difficulty Mechanics check. If successful, for the remainder of the encounter, combat checks the character makes against vehicles, structures, or droids that inflict wounds or hull trauma automatically inflict a Critical Injury or Critical Hit (depending on the target). An advantage or triumph result can be spent to trigger the attack's critical rating additional times, adding +10 to the critical roll as normal.
UPGRADES[]
Change Skill Upgrade: The skill check to activate The Harder They Fall can be performed using Knowledge (Education) or Knowledge (Warfare) instead of the Mechanics check.
Destiny Upgrade: To activate The Harder They Fall, the character needs to spend only one Destiny Point instead of the normal two.
Frequency Upgrade: The Harder They Fall can be used one additional time per game session.
Increase Number Upgrade: The effects of The Harder They Fall extend to a number of allies within medium range of the character equal to the character's ranks in Increase Number.
Ignore Defenses Upgrade: While The Harder They Fall is active, combat checks the character makes ignore one point of defense rating per Ignore Defenses.
Reduce Difficulty Upgrade: The difficulty of the skill check to activate The Harder They Fall is Average instead of Hard.