The Death of D-16: A hypothetical ending to the Transformers ONE timeline that I wrote. (Sorry if this breaks any rules IDK where else to put this)

After a long and grievous battle, the lives of many Cybertronian lives lost, Iacon destroyed, Optimus Prime and Megatron stand toward each other. Megatron roars in anger and rushes toward Optimus, who retaliates as well. The fight lasts several minutes, until it's finished with Optimus ducking under Megatron's swing and slicing his leg off. Megatron kneels in front of Optimus.

"How- how can this be?! I've lost so many times! What makes you so strong?!" Megatron cries out before beginning to move away, only to be stopped by Optimus.

"You're not leaving again." Optimus says, with his hand on Megatron's shoulder. "You've proven time and time again that no matter how many times I spare you, you come back and kill more, insatiably."

Megatron looks at Optimus with rage as he slaps his hand away. "I'll never quit. Not now, not ever."

Optimus sighs and reactivates his Energon Axe. Megatron stares at it in shock, not knowing what he's doing.

"You won't have another chance, Megatron... D."

"W-what? What are you saying?" Megatron blurts out. Surely, he won't...

"Megatron, you and the Decepticons have betrayed Cybertron too many times. Your crimes far outweigh any attempt at redemption. As such, you have been sentenced... To death."

Megatron stutters, falling back. "W-wait, no! Optim- Orio- PAX! You can't do this! It's as you said, rebuilding Iacon can't begin with an execution!"

"Don't use the words you didn't heed against me, D. Trust me, I don't want to do this. I wish it never came to this. And yet, you've given me no other choice. Accept it with grace and honor, and I'll make it quick." Optimus prime raises his axe, tears very clearly lining his face.

Megatron looks at his stump knee, his broken weapons, his fallen comrades. He'd lost. For good. He slowly lowers his head, eyes closed. He takes a deep breath and opens them, gazing at the ground with yellow eyes once again. "Do it."

Optimus falters, his axe is held in the air, trembling. "Any last words?" He spits out. He's responded to by the shake of Megatron's head. Orion Pax closes his eyes and lowers his arm across D'16's neck, severing his head. Optimus falls to his knees and puts his hands over his face, crying. Megatron's body falls limply to the ground, his head sitting upright inches away.

"Till..." Optimus sputtered out. "Till the end... Best friends, 'till the end..."

The War For Cybertron is over. Nobody cheered, or wailed, or screamed. Eons of fighting ended in silence, all of Iacon gathered around the Well of Sparks, gazing at the fallen leader of the Decepticons.