Tactical Sprint is one of the most important elements of multiplayer in Call of Duty: Modern Warfare 3. Usually, you only have a certain amount of the movement feature before you run out and need to recharge it. However, players have discovered a way to essentially never run out of Tactical Sprint in MW3.
How Tactical Sprint works is you can only run at the increased speed for around four to five seconds before running out. This is indicated by your character running with two hands on their gun instead of having it straight up in the air. If you want to make sure your character never has to put down their gun again, though, check out the guide below to see how to never run out of Tactical Sprint.
Infinite Tactical Sprint trick in MW3
From what I can tell, this trick was originally discovered by OpTic Texas professional player Anthony “Shotzzy” Cuevas-Castro. I have no clue as to how Shotzzy found out about this trick, but I can confirm it still works as of Nov. 21, 2023.
The trick is extremely simple, as all you need to do is run with Tactical Sprint until you’re about to run out of it. Then, when you’re nearing the end of your sprint, press your grenade button (R1/RB) with the Semtex equipped. This will bring out the Semtex indicator on your HUD. As soon as you see the Semtex come out, quickly cancel it by pressing Triangle/Y. After you cancel it, you should immediately be able to go back into a fully charged Tactical Sprint.
I recommend only using a Semtex for this trick, as you can’t cancel a Frag Grenade, and tactical equipment takes slightly longer to cancel, in my experience.
You can see Shotzzy demonstrating this trick in the clip below.
At the time of writing, it’s unclear if this trick is an intended feature by the developers or simply a bug that will likely get patched in a future update. However, for now, you can run all around the map with infinite Tactical Sprint in MW3.