ok now I know how to use triggerserver,
is there a big diffrence to triggeraction?

No, not when dealing with weapons. It's recommended that you use triggerserver.

ok
:)
thanks for all your help

just a lil question
is triggeraction used for npcs or classes?

no

kk

Well, you can use it in classes depending on what you're doing. If you join the class to a weapon then yes, and if the class is joined to an NPC in a level you can use triggeraction.
However, you can't do anything like triggerserver("class", name, params); there is a special method of doing it.