I put the transport gunship through a quick combat test consisting of one shooting at another.
Against rockets... it probably should avoid getting hit by rockets. Against guns, after a significant amount of direct fire(the shooting transport I was flying flipped over, limiting my aiming options) wrecked on of the rocket launchers(repairable), and shot out both of the feed lines for the machine gun. The passenger compartment which was strafed over a few times was mostly undamaged. Except the front-most seat, which needed a few interior plates of repairs. Not sure if the guy sitting in that seat would have been killed, though.
Flying it is still a bit tricky. It automatically pitches forwards, even when idling. Inertial dampers don't seem to slow it down enough, and it's hard to judge the correct pitch/roll to cancel momentum and slow down enough to land. It can land, if it's slow enough. Unfortunately, the test area I'm using is pretty rough terrain, making landing really difficult. I suppose the correct tactical use would be to drop troops when hovering low rather than risk a crash-landing.
EDIT: My latest attempt at doing something was a method to manufacture and launch torpedoes. The torpedo design itself is fairly decent, basically a large hydrogen thruster(and tank), a connector(for the fuel), a battery, a warhead, a sensor, and some plates to protect the warhead. Annoyingly, it takes a while to fuel, somewhere around 5 seconds for 1%. I don't know if I can speed it up using more oxygen generators or more connectors, or both.
The prototype for the fuel connector(from the launch platform) works, but the welder assembly needs a lot of work. I haven't learned to script yet, so I can't use a programmable block to set up a one-button system for that, but I figure with pistons and timer blocks it might be doable.
So far, I've yet to hit anything with the test launches(which are hard to set up, see above), but manually detonating the warheads is... underwhelming. The front blows away, but the armor surround the rest of the warhead just blows outwards. I may have inadvertently set up a shaped-charge armor penetrator but I'm not sure how much damage it'd really do. The test ship is one that's a box of heavy armor plates with guns and thrusters; I faceplanted one right into a planet at top speed and even the glass windows on the front weren't even broken.
Right now, the sensor just checks for a neutral or enemy ship in a short distance directly in front of it, and if it finds one, it detonates the warhead. I may want to change that to setting the timer on it instead to give time for ramming into the target's hull.