This is so funny because rust has one of the worst cheating situations and majority of their players are windows users, and theres lots of games that have anticheat that allows linux and have notably less significant cheating problems like marvel rivals. in reality rust doesn’t take cheating very seriously because if they did they would have more server side software that detects illegitimate behaviour like tons of other games do successfully… even most popular Minecraft servers have better functioning anti cheat that is completely server side than rust has while getting kernel access to your pc. its pathetic and lazy development tbh and this entire post from them reads like such extreme cope…
Your head is in the right place, but your example is very wrong. First, unless it’s a very slow projectile that’s not how bullets work in games, second movement takes place in the server, to do so in the client is nuts. Client sends inputs, sever moves, gives back player location, client adapts. While waiting for a reply the client simulates the movement expected, but sometimes the server doesn’t receive the package and so tells you you haven’t actually moved and you teleport back.
What’s usually not done is calculate vision cone, instead the server gives you everyone’s position and you calculate whether you can see them on your GPU. Which is why if you can get access to the GPU pipeline you can tweak it so it shows you objects through walls. If you move the LoS calculation to the server you completely eliminate wallhacks, however that is very expensive to do (although ray tracing GPUs might provide a good approach in the future)