How to complete the Black Ops 6 Shattered Veil Easter egg

Shattered Veil is the fifth round-based Zombies map in Call of Duty: Black Ops 6, taking players to a moody manor with plenty of dark secrets to uncover. The map has a fairly extensive main questline to follow with a few other easter eggs to discover along the way.

The Shattered Veil main quest involves a lot of random item spawns and tough boss fights, so it can be quite a headache even for experienced Zombies players. Since there's only a limited amount of time that you can spend in the pause menu during a match...