Prompt: grin (aka: different, adj. meaning an exceptionally awesome Team!Shepard. 1 of 5 ways Shepard and Co. could have gotten Santiago for Massani)
Follows: shoot
She knows the amount of pressure the trigger needs, the heft of her gun and the power of its kick. She knows to aim left for center, how to factor in wind, rain, and work around the inevitable sandstorm-jam. She can calculate the distance of enemy retreat with sight and sound, on foot or in fleet.
She's an expert, plain and simple.
It's why she knows it'll work, that the equation of fleeing shuttle and particle beam ends in her favor. So eight seconds after eating Santiago's exhaust, she takes aim.
He crashes.
She's something of a pyromaniac, as well.