Here is how finding the Stormtrooper goes in Ryan F-Freeman's Adventures of Transformers: Prime.
[We then see a groundbridge open, and Decepticons come out]
Dr. Neo Cortex: Now, to find this Apocalypse.
Stormtrooper:[wakes up and sees them] [Gasps] Hail Lord Megatron!
Megatron: What are you doing here trooper?
Ryvine Sparkle: Tell us.
Stormtrooper:[removes his helmet] I was assigned to stay with Ren after a failed attempt to get Jessica on our side. That's when they appeared. Three strangers wearing different things. One looked like Ozai, but was wearing his Phoenix King robes and had red skin. The other one was Flash Fire, I am sure of that.
Starscream: And the third?
Stormtrooper: It was Nur, who was thought to have been destroyed in 1983. Now it's my turn. What are you doing here?
Ryvine Sparkle: Apocalypse been there. Looking for him so I can get his armor.
[After a moment of silence, the Stormtrooper started laughing]
Breakdown: What's so funny?
Stromtrooper: You actually think he'll join you.[continues laughing] Clearly, you don't know a thing about him.
Evil Anna: I'd shut up if I were you soldier.
Stormtrooper: Well lucky for me, I'm not you. Ya see, the way Nur sees it, is that he 's gonna destroy the world and rebuild it in his own image. Not in Megatron's image. Not in Bowser's image. In his image. How do you hope to defeat a god who turn your weapons to dust, with their ammo, an enemy who can use you just to get into the world's systems? The way I see it, is that you morons have yourselves a death wish. Not me. I'm outta here. I ain't fighting him.[leaves]
Evil Anna: Two of my friends need me, guys. Bye.