Disappointing easter egg in the tomb. Especially the boss

I don't think there are any other boss fights that I dislike more than The Tomb. You can call it a skill issue or not being prepared enough or whatever but that boss fight was not fun.

Not only was the map exclusive wonder weapon almost useless AGAIN in the boss fight, but it requires so much ammo to progress even through phase 1. Not to mention the zombies giving you 10 points each? Unless you go in with the perfect loadout you won't be getting ammo.

My friends and I sat there for almost 20 minutes and no matter how much we shot, phase 1 wouldn't end and we just decided to end the game. Also the artifact being completely immune to raygun damage and mutant injection? Yeah you got me fucked up. I'd honestly rather do 150 rounds of classified than try that boss again. I get that it's supposed to be "challenging" but there's a huge difference between challenging and making it so difficult your playerbase gets stuck and feels like they can't progress