I agree it's not fun, because the only viable strats you can use to complete those missions involve camping in the back with a well or barricade, with long range weapons. BTW, if you want any advice on completing the mythic missions - get a couple friends, have at least 1 bolt charge barricade crest of alpha lupi titan that can spam barricades (which heal you when they use crest of alpha lupi) - 2 titans is preferable, and the 3rd person can be whatever (a well warlock is preferred). All 3 people should be using outbreak (make sure you have upgraded the intrinsic fully and masterworked with rewind rounds). An alternative to outbreak is polaris lance with a couple of the artifact mods paired with it. It will be extremely boring, but unfortunately it's really the only consistent way to get it done.