We are using your Firmware to control our autonomous underwater vehicle (called hippocampus). I am trying to start the gazebo simulation (without ROS) with the model of our AUV, which has been added in the sitl_gazebo submodule. With the command
make posix_sitl_default gazebo
the code is build and the simulation of the quadrotor starts. What do I have to adjust to start the simulation with the model of our AUV?