Forgive me if I'm late , Calcification req

I know tethering is eliminated I understand they are building the game around a more co-op system

And that is beginning of where I need clarification

1. are they going to eliminate that stupid Green , orange , blue , red system ?

Mean can 1 player search an entire house not just 2 or 3 spots

2. are there any changes made to how the npc's help you in combat?

In Sod2 , they would always take 3 steps back and wait till you attacked to attack the zombie, SMH

3. if I recruit a mechanic, why am I still repairing the truck ?

The npc's need to do what they have been recruited for , not me

Hopefully someone can help me with this Ty HAGD