Use:
_veh = createVehicle "Boat_Armed_01_base_F" [0,0,0];//map coords x:0 y:0
_veh setVelocity [-50,-50,400];
_particleTrail = "#particlesource" createVehicle (getPos _veh);
_particleTrail setParticleParams
[
["\A3\data_f\ParticleEffects\Universal\Universal", 16, 7, 48],// File,Ntieth,Index,Count,Loop(Bool)
"",
"Billboard",//type
1,//timmerPeriod
60,//lifetime
[0,0,0],//position
[0,0,-1],//moveVel
2,25.50,20,100,//rotationVel,weight,volume,rubbing
[5,30,30,30],//scale
[[0.3764,0.3764,0.3764,1],[0.37,0.37,0.37,0]],//color
[0,1],//animSpeed
0,//randDirPer
0,//randDirIntensity
"",//onTimerScript
"",//destroy script
_veh
];
_particleTrail setDropInterval 0.01
while {true} do
{
_particleTrail setPos (getPos _veh);
};
Observe that the smoke trail is still visible inside the clouds from the ground, when going through the clouds.