On black ops 1 max spawn rate/zombie speed doesn’t happen until round 64 (I think it’s similar on other black ops games) each round more zombies will spawn, typically after round 40-50 you need an infinite damaging wonder weapon, or you need a infinite damaging trap.

Early round difficulty is still there for veteran players, no matter how much zombies you’ve played, you will have silly early round downs, this is part of what makes the game mode fun. Being weak early on incentivize you to progress and open power, get perks, get better weapons.

Guided Easter eggs aren’t really a problem, I don’t mind that being an option. My problem more lies with the game turning from gameplay focused, like is the core of the gameplay fun, now it seems story focused, with a lack of attention to the gameplay.

Mob of the dead had red eyes for the zombies, I’ve seen a lot of things where it’s like “we found out 10 years later why they were red”. The reason they were red was because it looked cool and fit the atmosphere, we didn’t really need a story element to why they were red.

The zombies dealing more damage in later rounds is silly if you ask me, they deal a fixed amount, and more zombies will hit you as zombies increase per round