Roblox Code Testing

Prompt

Replicate and build a complete, polished FPS system entirely inside **one single Roblox LocalScript**. Make it feel like a proper modern FPS, including a first-person viewmodel, guns, shooting, reloading, aiming, weapon switching, ammo, recoil, spread, weapon sway, movement bobbing, procedural weapon/arm animations, sprinting, crouching, sliding, jumping, landing, camera effects, FOV changes, and all other systems and details you would reasonably expect from a high-quality FPS controller. Make the entire experience functional and cohesive rather than treating each feature as a separate demo. The gunplay, movement, camera, viewmodel, and animations should interact naturally with each other and feel responsive and polished. Create everything necessary yourself and make sensible decisions wherever details are unspecified. The finished result should be immediately playable and contained completely within the **single LocalScript**.