Cheat Engine

[HellForKiller]

With the basic tutorials nothing works,
with a video showing examples from the tutorials,
nothing works.
What is the purpose of your application if nothing works?
Value=5 I shoot once to then enter the value of my ammunition but the scan does not find the difference.
I also tried it on another game, nothing works.

Hell for Cheater.

[Autem]

If you have the ability to provide a video of exactly what you're doing, maybe one of us can look at what you're doing and figure out what's wrong. If you're new to using CE, it may be something simple we can catch right away if we see your attempt in action. A video of your own personal recorded actions (not the video you are watching for help). At the very least, maybe several screenshots of your CE window as you take various steps.

[DhaosCollider]

Do you mean gtutorial? If so, search by the number of shots fired, not the current ammo count.
I've already uploaded gtutorial-x86_64.CT to CE Share, in case you want to try it.