YMMV / Star Wars: The Clone Wars S3E1 "Clone Cadets"

• Harsher in Hindsight: The final objective of the Cadet's training simulation is to scale a structure called "The Citadel." A couple seasons later, Echo gets blown up in a place called The Citadel...
• Hilarious in Hindsight: While Bric is chewing out Domino Squad for their behavior in the opening practice test, he says that even a bad batcher like 99 has more sense than the cadets. Four seasons later, a now cyborg ARC Trooper Echo will go on to join a squad of defective clones nicknamed the "Bad Batch" and officially named "Clone Force 99" after 99, who have one of the best track records in the entire Grand Army.