My opinion is probably worthless, but I'll add my 2cents. I have a horrible track record with pronouncing things, so maybe you should look at how I say it and avoid using it.
Mortarion? MOR-tare-ee-on.
Sanguinius? San (sort like sand without the d)-gween-ee-us (short u, like up)
Perturabo? PER-tur (like turn without the n)-uh-boh (like bow-ties).
Vulkan? Vul-KUHN. Like the Star Trek ones.
Jaghati? I don't even try. I just look at it and I know what I'm reading. Thankfully I don't bring his name up much in conversations.
P.S. I'm an American from the Pacific Northwest. Your pronunciation of the word examples I gave may differ.
Mortarion? MOR-tare-ee-on.
Sanguinius? San (sort like sand without the d)-gween-ee-us (short u, like up)
Perturabo? PER-tur (like turn without the n)-uh-boh (like bow-ties).
Vulkan? Vul-KUHN. Like the Star Trek ones.
Jaghati? I don't even try. I just look at it and I know what I'm reading. Thankfully I don't bring his name up much in conversations.
P.S. I'm an American from the Pacific Northwest. Your pronunciation of the word examples I gave may differ.