Collision layers and player collision mesh

[FatsackTony1]

So there were 2 mod ideas I was trying to work out.

 

1. Bullet penetration - I actually got this to work, but it was an all or nothing thing. I could easily get bullets to ignore most environmental geometry by removing that tag from the collision layer record on the projectile or weapon (been awhile I forget which) this also doesn't lend itself to realism, since even a pistol round would pass through 3 feet of concrete. Has anyone ever found out how to add custom collision layers to placeable objects in the creation kit? I believe it requires to edit it directly on the mesh itself, but I had no luck with nifskope and have not kept up with the current S.O.P. when it comes to working on meshes.

 

2. The second was to shrink the collision mesh for the player so that you can actually jump through windows, crawl out of porches, crouch and move through holes in the wall, etc. But to my knowledge editing player collision is completely hard-coded.

 

Anyone know anything about these 2 situations?