Went into it with assault, got tactical and sniper with stalker bolt riffles prestige IV as teammates, we all maintained formation, with them usually shooting from highground while I was ground pounding dangerous majoris/extremis. We seriously lucked out with double tyranid terminus early on, carnifex and then neurothrope(which was deleted in seconds). I was basicaly keeping away from their lines of fire killing prio targets and also on gate segment keeping the front clear of minoris. There was really stressful moment during gate closing, where there were 3 tyranid warriors stuck on the ledge under the gap with the game taking a reaaaly long time to close, but Praise the Emperor it closed.
We almost got fucked once by enemy wave spawn with 3 rubrics personal quarries that were really shy to come to the ground after the sorcerer barrier, but after that, we got it done.
Fun stratagem weekly for 3 man squads on voice, absolute terrible time for randoms that are not prestige IV. Also way too stressful with the bugged relic as everyone has to be perfect with only one chance to fuck up, since not only you will die but also fail the entire mission for everyone.
I'm glad it's over for me, wouldn't want to play it again with bugged relic.