Who Are You? Starscream?

Transformers Armada

first of all, before moving on to the story, I'm telling you what you need to know.

As soon as Starscream's spark left the Iacon chamber, he was merged into the Decepticons. Rebellion

Starscream accompanied Megatron's forces to Earth in 2010 in search of the lost Mini-Cons. Warping to the planet shortly after his leader, Starscream and Demolishor materialized in the path of the three human children who were fleeing a battle between Megatron and Optimus Prime, but were preventing from capturing the Mini-Con with them by the sudden appearance of Hot Shot and Red Alert. After temporarily withdrawing to their new base on Earth's moon—where Starscream snickered as Megatron berated the lackadaisical Cyclonus—the Decepticons returned with new Earthly alternate modes and made another attempt on the humans and their Mini-Con friends. Metamorphosis Starscream's new jet mode gave him no advantage against the Mini-Con empowered Autobots, and the villains soon retreated to base once more, where Starscream and Demolishor got into a fight over who was Megatron's favored subordinate. Irritated with their antics, Megatron presented Demolishor with the sole Mini-Con the Decepticons had been able to recover and charged Starscream with finding his own, infuriating the younger 'bot. 

Base Starscream was intent on taking the Mini-Con detected in Big Canyon for himself, but Megatron ordered him to stay behind at the base while the other Decepticons went after it. Disobeying orders, Starscream warped down and interfered with the fight, only to be caught offguard by Perceptor, allowing Optimus to obtain the Mini-Con. Comrade A severe "disciplining" from Megatron did not dissuade him, and during the next Mini-Con quest in Antarctica, Starscream succeeded in locating the Mini-Con's storage panel in a crevasse wall. Starscream retrieved the panel after a tussle with Hot Shot, but when Red Alert snatched it away, Starscream fired upon him and wound up causing an avalanche, knocking himself into the crevasse's depths. Soldier

Starscream blamed his lack of Mini-Con for his poor performance in a training simulation, but when the next storage panel was found during a forest battle, Megatron refused his request, intending to keep it for himself. While Megatron was occupied battling Optimus Prime, however, Starscream swooped in and grabbed the panel, opening it and bonding with the Mini-Con within, Swindle. With the new null laser cannons Swindle granted him, Starscream sent the Autobots packing, and gave Megatron more than a little cause for concern.

Jungle he proceeded to strut around the base with Swindle on his shoulder, making fun of Demolishor, Carnival but his mockery was soon to be replaced with concern; after a mission in the Sahara Desert, Megatron forced Demolishor to hand over the next Mini-Con he found to him. Starscream took no delight in this mistreatment of his comrade. Palace
Starscream helped enact Megatron's plan to force the Autobots to trade their captured human friends for the Mini-Cons, but it met with failure. Confrontation Later, he helped the Decepticons explore the American underground for the next Mini-Con, but confined and unable to fly, he had Swindle do his searching for him, to no avail. Underground He had similarly little luck in an underwater scuffle with Hot Shot when the Mini-Con quest took the Transformers to a sub-aquatic ruin, Ruin and his misfortune continued during the battle that following on a volcanic island. There, Megatron also continued to berate Starscream for whatever move he made on the battlefield, finding fault in every decision Starscream made. Prehistory After this run of failures, the Decepticons got proactive, invading the Autobot base to capture the Mini-Cons that together formed the Star Saber sword, but in the course of the attack, Starscream was lured into a hall of mirrors by Red Alert and fell down a shaft. He tried to fly back up it in jet mode, but Red shut a series of panels on top of him, clipping his wings. Swoop.

Though successfully formed, the Star Saber wound up in Autobot hands, and Starscream felt the blade's power for himself when Hot Shot unleashed it against him during their next meeting. Furious over the defeat and with his anger only stoked by insults toward his capabilities by the Decepticons' new member Scavenger, Starscream challenged Hot Shot to one-on-one combat when next they clashed. Starscream gave a better account of himself in this rematch, but he met defeat once again when the Star Saber cleaved his own sword in two. Overmatch After helping Megatron supervise Scavenger's excavation efforts during the search for the next Mini-Con, Gale Starscream got another chance against Hot Shot when the young Autobot and his new teammate Sideways were inadvertently warped to the moon. Starscream was on the verge of defeat yet again until Sideways revealed himself to be a traitor and knocked the sword from Hot Shot's grasp, straight into Starscream's waiting hands. Credulous.