[quote=@Necroes]Admittedly, it's also been used on occasion as a generic term for space marines in general.[/quote]

Apparently you just answered your query without my help, showing that you were both wrong. Astartes are commonly called the 'Emperor's Angels of Death'by the common folk of the Imperium, I thought that was common knowledge?

Also, I think the fact you call the Emperor's Children a 'chapter' speaks for itself. That and the fact that Emperors Angels was in no way a legion-specific nickname for any one legion.

Nothing got mixed up, but thank you for pointing it out anway, he's actually talking about the Hawk Lords vessels (an actual Chapter of loyalist marines) that have finally arrived in system.