I wouldn't call C4 a tool. Neither is that Uber Hunting Bow. Admins have almost no "tools" in Rust except for the invisibility armor, which doesn't even make you fully invisible or soundless so you can stalk people you think are hacking, or kick, ban and teleporting.
There's no spectating, no no clip, nothing really useful. If Rust had noclip OR spectating OR proper invisibility + no sounds, the admins job would be much better.
These tools are all long overdue. I'm personally hoping for a "padded room" solution for abusive players, where they get muted, turned invisible, and can't interact with anything. That hacker who's flying through the air and headshotting everyone? Sure, he's still here, but nobody can see him and he can't interact with anybody.
Or maybe a "10% speed" timeout for abusive players. For 5 minutes, everything they do is at 10% of its normal speed. Combine this with a mute and you've got turnabout.