Stronger zombies

Hi!

I realy like that mobs in Minecraft has different abilities and counter plays. But the adult zombies are eccentric, becasue literally they don't have any trick. It's realy easy to hunt them down, even without any tool and without recive any damage.

-Increase the speed of the adult zombies by 20%. These would be still slower than the kids and easier to hit, but it could make them much more dangerous.

-We can deal the first hit, and keep the distance again and again with good timing. If we can't hit them firstly, we aren't punished so much, because they deal low damage and slowly. I suggest to increase their attack speed too by the same 20%, for make the players' faulty attacks more punished against them.

-Their spawning mechanic is similar: create some mobs everywhere, they spawning is homogen. They should spawn rarelier but mostly in small groups. It could make them less expected and more suprising enemies. You know. Zombies main force in movies is their headcount.
Currently we just meet them all the time and kill them realy simply.

-Lonely spawned zombies should able to spawn twice nearer and behind us to make them suprise :D
Currently we are just walking and see them in front of us... A lonely zombie's force isn't great, but this suprise mechanic could make them able to deal some damage.

-Lonely spawned zombies should always have some weapons or/and armors for balance their disadvantage.