'Our' ZS and 'new' ZS are just completely different. I don't like the new ZS. In our ZS, you actually need to seek for kills to gain weapons for your survival. Melee weapons are big thing and you need to have some dodging skills.
In this new ZS, it feels like there's no way to dodge, using melee weapons is impossible and you can just run, shoot and pray.
New ZS might be more noob-friendly for zombies but I still like the old style:
Melee, kill some more until you get 15 kills, own some more until 20 kills, if you get cades and you have ammo in the map, barricade, survive.
And in the end, the survival rate to wave 10 is quite small.