FaultyEngineering

I saw this mod, and became very interested. I love to say the mod is well-crafted, and turns KSP into a Vehicle R/D Center. I have one issue, and I need assistance. How do I build subs? I'm not the sharpest tool in the shed (explains the constant explosions my Kerbals witness), and would enjoy a tutorial, whether it be a video or a text tutorial. Though if this interferes with your mod development, don't bother. P.S. I know I'm asking for too much now, but a tutorial on the Heisenberg Airship Parts would also be nice. Again, I'm probably asking too much from you developers.