Dune FAV (If you add it don't close it)

[ForgeGMP]

                    // DUNE3
                    case 1897744184:
                        return new MuzzleInfo(v.Bones[53].Position, v.Bones[53].ForwardVector);

[ForgeGMP]

                    // DUNE3
                    case 1897744184:
                        return new MuzzleInfo(v.Bones[42].Position, v.Bones[42].ForwardVector);

If the car have the grenade launcher this is the bone

[Sardelka9515]

74a22652008cc7d17201be0ea677d5da95e16a11