Scripts

[1Cap]

...
I know how much damage the sniper rifle does, and I can see/hear when I hit with it. Because of that I can use my brain to guess at how much health the enemy I hit may have left; ...

if you use your brain for this, ok. If you use an automatic system that never makes mistakes, is not ok. See, the game needs to be competitive among players. It should never be a competition automated, who has the best script.
I'll post another example of how scripts change the gameplay:

http://forum.cubers.net/thread-6494-post...#pid123286

Besides having to play at a disadvantage against cheaters must play in desvantegem against scripters too.