Bridges troubles

[SAS4Life]

Im trying to make a mission on a island i found whereas you sail under the bridge and shoot at the people tanks and petrol cans above it. how ever when i try and but the objects on the bridge they just land in the water below

[Artak]

Type in the objects init field

this setpos [getpos this select 0, getpos this select 1,(getpos this select 2)+20]

This should raise the object's height by 20 meters.

[The-Architect]

Yeah, you have to find the height of the bridge by trial and error. If your not going to see the objects until at least a few seconds after the mission/intro starts, then you can usually get away with having them start just above the bridge so that they fall into place. This works with tanks and such but I have a feeling that the barrels would fall over or bounce around when they hit. I dunno though.