So I was running Enter the Unknown and the party was getting back to their ship after the trouble with the Empire had started. I decided to as basically a boss for the adventure, since they decided to flee, to have an Elite Scout Trooper waiting for them alone in their ship waiting to ambush them.
The trooper had lowered loading ramp of their ship and way laying down prone at the top of the ramp pointing his rifle out at them as they approached. No one spotted him.
First shot that gets fired, BAM, 3 successes. The gadgeteer went from full health (12 wounds) down to 1 remaining wound point after the first shot with Pierce 2, Jury Rigged Armor Clothing and all.
That one sniper with 1 rank in Ranged Heavy and 3 Agility was able to pin down the whole party for 5 combat rounds. They had a tense moment with it and they had fun figuring out how to deal with him.