The Mobility Course in the Modern Warfare 4 beta looks simple until the timer starts. It sits inside the Proving Grounds and asks you to sprint, aim, slide, and react without wasting a step. The Expert version is where things get serious, with the Clockwork Weapon Charm waiting for anyone who earns an S-Tier result. If you have been browsing MW4 Bot Lobbies between attempts, keep in mind that this challenge is really about clean execution, not just fast movement. You need a finish below 56 seconds, and a 58-second attempt will not be enough.

Route Planning Matters More Than Speed

The quickest-looking path is often a trap. Targets reduce your recorded time by one second each, so a slightly longer route can be much better if it gives you extra shots. Watch the lower levels in particular. A quick drop may reveal targets that are easy to miss from the main walkway. Do not rush blindly, though. Fall damage and laser traps can erase the advantage you gained. During practice, learn where each target appears, then build a route that keeps your movement smooth while still collecting as many reductions as possible.

Keep the Pistol Ready

Ammo control is one of the easiest details to overlook. Players often sprint through a quiet stretch, reach the next target group, and discover that the pistol is empty. Reload during a lull instead. It costs far less than stopping in front of a target. In sections with no shooting, switch to the combat knife for a useful movement boost. It may only save small amounts of time, but several small gains can decide whether the run clears the required mark.

Settings That Feel Reliable

There is no single setup that suits everyone, but a few choices make the course easier to manage. Tactical Sprint Assist helps you hold speed while moving forward. Tap to Slide keeps the movement input simple, although experienced players may prefer the hybrid option. Toggle sprint behaviour can make transitions less awkward. Double-tap activation reduces accidental bursts, while Free underwater plunging gives you more control. Lower thumbstick sensitivity slightly if your aim feels shaky at full speed.

Use Beginner and Intermediate runs to memorise the layout.
Reload before the next target group appears.
Check lower platforms for extra targets.
Carry the knife through non-shooting sections.
Repeat the course until the route feels automatic.

Build a Repeatable Run

Do not chase the clock from the first attempt. Start by learning the course without worrying about rank, then improve one section at a time. A good run should feel controlled: targets fall quickly, reloads happen between groups, and movement choices are deliberate rather than frantic. Once the route feels familiar, push for cleaner transitions and fewer risks. The Clockwork Weapon Charm becomes much easier to claim when your practice has a purpose, especially if you use cheap MW4 Bot Lobbies only as a separate way to warm up before returning to the course.