Rotates the first vector around the second, clockwise by theta degrees.
|_vector||3D vector that is to be rotated ARRAY|
|_rotationAxis||3D vector that the first argument is rotated around ARRAY|
|_theta||Angle, in degrees clockwise, about which the first vector is rotated <NUMBER>|
|_returnVector||3D vector returned after rotation ARRAY|
//Rotate 25 degrees right of player weapon direction; [weaponDirection player, [0,0,1], 25] call CBA_fnc_vectRotate3D; //Pitch a projectile's velocity down 10 degrees; [velocity _projectile, (velocity _projectile) vectorCrossProduct [0,0,1], 10] call CBA_fnc_vectRotate3D;