^
That post... seems not accurate (with information).
Just disagreeing and providing not a short drop of info as to why, brilliant.

Well - for people officially not being Devils, the people of Fae'run (the Druids too) call them Hellspawn & Foulblood, or a Devilchild quite often.
And from what I have seen a Tiefling is simply a 3/4 Mortal and 1/4 Devil, bloodline-wise.
Enough infernal heritage to make them look kinda Fiendish, but they have no destructive or infernal Urges that truly control them.
Their personalitys shape accordingly to how the world treats them.
While a Cambion seems to think of itself as superior because of its devlish heritage and is most likely to side with the Lords of the Hells.