Death Attack vs Sneak Attack

[Complex]

Hi guys, sorry to bother again, i was wondering how Death Attack vs Sneak Attack is actualy working.
In previous Bioware cfg, Death Attack overrided Sneak, adding the aditional damage but keeping paralisis hability. I saw a toon yesterday which had both, rogue and assasin and no death attacks where made, only sneak attacks, is this how prc is working today? or are we having some bug?
Thx guys!

[xwarren]

I'll have to check that, but iirc PRC assassin had both bioware death attack and PRC 'true death attack' (study target for 3 ronds and than you have 3 rounds to kill it).