Simple Idea for the chain link fence -

Make the chain link fence climbable… like in real life.

The real life argument is invalid in rust.

Well this is simple enough.

Everything doesn’t have to be non realistic.

Or make it so that you can cut a hole in it, kinda like in wolfenstein. Just make it time consuming, loud, and less futuristic.

Different climb rates for different fence types.

I mean, everyone who’s anyone has climbed a chain link fence in their life.

But then again, it’s not always that easy when it comes to videogames.
Besides, who would put up a fence that would basically be pointless? You’re not keeping anyone out if they’re climbing over it… unless you add barbed wire to it? for 40 metal frags each piece? As an upgrade with the hammer.