Nicely detailed post. Firewall should learn from this guy.
I haven't been playing too much these days because of those 5 pages essays and public speech non-sense. However at a glimpse I also found the difficulty system kind of broken.
Yes I certainly did not try out everything due to time constraints, but I will still whip down my 2 cents here.
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Porter already illustrated the situation properly so I will simply add what I think can use some attention.
High Win Rate =/= Should be more Difficult
As much as the system might make sense, I would like to point out the server is certainly not always full.
There are a handful of factors that contribute to late games being easy, which inflates win rate.
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-Even if human:zombie ratio remain constant to say 2:1, it is much less intimidating to see 4 zombies charging than 20. The ZS instinct already sealed in our mind (at least for me 4 years) trained us that we should turn around and run if we feel overwhelmed. Which lead to poor defense in high population compared to low population.
-Props hp are not scaled means low population = 3 zombies vs 1000hp shelf; compared to high popluation = 20 zombies vs 1000hp shelf. If repairer and shooter are at constant ratio, then low population is certainly easier.
-Less incentive to afk for wave 4 weapons because individual performance is more important in low population.
-4 zombies feel weaker than 20; discouraging those who were picked as initial zombie from playing. AFK time bois!
-Low skilled kids and squeakers are in bed, deflating player population compared to skill level.
Some of these factors are not something we can fix (like ZS instinct to run away from large amount of zombies despite there are also more humans around), therefore low population will continue to inflate win rate; hence contribute to the fact the difficulty system is currently flawed because it does not seem to take time and population, as well as the immeasurable skill level to consideration.
I am not sure about if point rate changes when higher difficulty is inflicted against humans; but from what I heard human deal less damage in high difficulty. Which certainly can bring back to the topic on some weapons being under powered and too hard to profit off of.
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So yeah that's what I think about the difficulty system. The system is currently flawed and will certainly help killing the server if human get wrecked even more than all these poor games we are already having. The new generation players simply won't handle this well.