I think you got them confused.
Check out Pan.Thy.Monium. The first 2 demos are some of the best death metal Sweden has to offer.
Dawn of Possession is by far Immolation's best imo, but if you're really getting a hard-on for more dissonant and chaotic stuff lately, you should try stuff after Dawn of Possession, which is more straight forward death metal.
Not particularly.
I totally agree that Dawn of Possession is a better album, but I have to say that their pre-Harnessing Ruin albums are totally not straight forward.
Get all of their albums when you get the chance. My favorites are Here In After, Unholy Cult, and Dawn of Possession.
What's better, Dawn of Possession or Here in After? I'm deciding which to buy. By the way, I like it heavy and have been on a big dark-crushing DM kick lately (e.g. Ignivomous, Impetuous Ritual, Dead Congregation, Incantation).
aka Swano shouldn't be allowed near death metal