Sounds like a line from a children's book, "The Little Venerable Dreadnought".
(I've added him to the gallery)
Thank you. It's The Littlest Venerable Dreadnought, actually.
Once upon a time brave Space Marine Vanvlak
was bitten by a Tyranid
and sat on by a Gargant
and webbed by a Warp Spider
and bombarded by ten little Tau suits standing in a row.
Mr Apothecary came along in his nice white armour.
"Poor Space Marine Vanvlak!" said the Chapter Master.
"Can you do something to make him feel better please?"
"Yes!" said the man,
and he swept up all the little bits left of poor Vanvlak and put them in a bucket,
and he took the bucket to the nearest Techmarine (in his nice red armour).
Together they put Vanvlak inside a giant dreadnought!
It was big!
It was beige!
It had twin linked lascannons and a power claw and a flamer!
So Dreadnought Vanvlak was bigger and stronger than Vanvlak ever was,
and he fought for ten thousand years (although he slept through most of them!)
and in the end he became venerable dreadnought Vanvlak.
That is my story!
And Dreadnought me is progressing along nicely!