they are saying to use triggers to tell the person where to go. as in giving him the order to move somewhere through a trigger's activation line
e.i. unit move getpos whatever
...no, actually that doesn't work.
It is just like placing a WP in the editor.
could you please explain a little more
About vet mod why it is better and what it does to waypoints.
In cadet mode, you get those little yellow boxes showing you where your WPs are. In vet mode, you don't get those boxes (unless you are in a tank or helo or other vehicle). There are lots of other differences between cadet and vet mode (not related to WPs). Basically, in cadet mode you get lots of unrealistic things to help you know what is going on. Many people (like myself) only use vet mode because it is more realistic.
Are you saying i should stop making waypoints for the player?
You can still make WPs, because they will still show up on the map. However, don't put anything in the activation field of those WPs, and don't synch them to anything. Basically, you can't rely on the player actually "completing" those WPs. Players in cadet mode will still get to see the WPs though, and those in vet mode will still see them on the map, if you choose. Vet mode players will also see the WP if they are in a vehicle, but personally I don't like seeing WPs when I get in a vehicle.
Now if you had things synching the player's WP or putting stuff in it's activation field, you should place a trigger at his "waypoint" instead. Group the player to the trigger, and only him or his group will activate it. Then just synch things to that trigger, instead of using a WP. As stated before: there is no garuntee (can't spell that word) that the player will do his wp's in the order you want him to, nor can you be sure he will actually walk exactly where you want him to.
Basically, you can't use WPs for the player the same way you would use it for the AI, because the player has RI (real intelligence), and can choose to do things however he wants.
but then how would he know where to go?
Most missions rely on the briefing, and markers placed on the map, in order to tell the player what to do. Cadets get to see where they are on the map, so they shouldn't have any trouble at all. Vets don't get that luxury, but as long as you tell the player where he is starting from, he can find his way around (since he has a compass). If there are landmarks like towns, then that makes it extremely easy to orient yourself as well. Most people know the layout of the islands pretty well anyway.
And oh yeah, even vets can find where they are by cheating, if they have a squad ("2, report status").
I have to admit I do this on occasion myself.
If you really want to help the player know where he is, you can make a marker follow him around on the map using a script such as the one here
here.