Question about making a simulator

I’m trying to re create a game like wall punching simulator and I have some questions.

My first question, I’m detecting the hit detection and sending it to the server then sending it back to the client to deal damage/destroy to the wall. Was wondering if there was a better way to due this to prevent exploits (Need it to deal damage on client)

My second question, what’s the best way to figure out the health per wall to make sure playtime is not too fast or too slow without having to spend hours playing and re configuring the health.

For your first question, just add sanity checks and you should be fine

For the second question, maybe look into attributes and have an attribute named health under the wall or something like that? I’m not sure if that is the best way to do it though.