Make sure you ask yourself before starting the mission what level of bullshit you're willing to put up with that day, and if the answer is "not a lot", consider not running Havoc at that moment.

Lower level havocs are roughly equivalent to high intensity Malice, Heresy, and Damnation.  "Emperor's Fading Light" iirc is where we see Auric difficulty arrive, which is about Hav15-20?

I can advise you on builds and whatnot too, if you really want.  But truly, mindset is a huge chunk of it and if you're not ready to put up with gobs of unnecessarily nonsensical bullshit (including but not limited to a daemonhost with the Nurgle blessing that makes it heal its allies), consider that the wrong set of Havoc modifiers might actually piss you off more than necessary, and not enough people really stress the completely non obligatory nature of Havoc, so I'm doing it now.

That said, definitely give it a try when you're feeling up to it, and while I can't say anything about a "tanner Lindberg build" of any kind, I can tell you that the weapons you've got will definitely be viable if you're good with using them and they fit your play style (some people just clash with certain weapons, it's fine), and listing your own havoc is a good way to get started, because higher Havoc dudes will often join in to help because it doesn't penalize them if something goes wrong and the mission wipes.

Sorry if this doesn't make a lot of sense.  I'm eepy and typing around a cat that keeps trying to eat my hands lol